Package Instance
Lookup for vulnerable packages by Package URL.
GET /api/packages/11867?format=api
{ "url": "http://public2.vulnerablecode.io/api/packages/11867?format=api", "purl": "pkg:pypi/matrix-synapse@0.33.5", "type": "pypi", "namespace": "", "name": "matrix-synapse", "version": "0.33.5", "qualifiers": {}, "subpath": "", "is_vulnerable": true, "next_non_vulnerable_version": "1.106.0", "latest_non_vulnerable_version": "1.139.1", "affected_by_vulnerabilities": [ { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/8075?format=api", "vulnerability_id": "VCID-1cxk-wn3b-jycq", "summary": "Synapse is a Matrix reference homeserver written in python (pypi package matrix-synapse). Matrix is an ecosystem for open federated Instant Messaging and VoIP. In Synapse before version 1.28.0 requests to user provided domains were not restricted to external IP addresses when transitional IPv6 addresses were used. Outbound requests to federation, identity servers, when calculating the key validity for third-party invite events, sending push notifications, and generating URL previews are affected. This could cause Synapse to make requests to internal infrastructure on dual-stack networks. See referenced GitHub security advisory for details and workarounds.", "references": [ { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2021-21392", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.002", "scoring_system": "epss", "scoring_elements": "0.41975", "published_at": "2026-05-30T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2021-21392" }, { "reference_url": "https://github.com/matrix-org/synapse/pull/9240", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/matrix-org/synapse/pull/9240" }, { "reference_url": "https://github.com/matrix-org/synapse/security/advisories/GHSA-5wrh-4jwv-5w78", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/matrix-org/synapse/security/advisories/GHSA-5wrh-4jwv-5w78" }, { "reference_url": "https://pypi.org/project/matrix-synapse/", "reference_id": "", "reference_type": "", "scores": [], "url": "https://pypi.org/project/matrix-synapse/" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/20260?format=api", "purl": "pkg:pypi/matrix-synapse@1.28.0", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-3stp-shy4-dudr" }, { "vulnerability": "VCID-3tbz-jcb2-4fdn" }, { "vulnerability": "VCID-43wz-3reu-s3ep" }, { "vulnerability": "VCID-5fgp-pcfw-33gk" }, { "vulnerability": "VCID-66cm-6sgb-bqft" }, { "vulnerability": "VCID-arh5-tp1n-nubq" }, { "vulnerability": "VCID-g7rm-55dm-tybk" }, { "vulnerability": "VCID-jg9y-53m4-5bb6" }, { "vulnerability": "VCID-mmge-uj6j-k3c2" }, { "vulnerability": "VCID-nmup-uep4-b7hw" }, { "vulnerability": "VCID-pg5k-2upe-dudk" }, { "vulnerability": "VCID-ry9q-34p9-auh6" }, { "vulnerability": "VCID-tug1-g6m1-j3f3" }, { "vulnerability": "VCID-v54a-sjgy-b7ca" }, { "vulnerability": "VCID-z5ga-q6zr-3kb5" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/matrix-synapse@1.28.0" } ], "aliases": [ "CVE-2021-21392", "GHSA-5wrh-4jwv-5w78", "PYSEC-2021-25" ], "risk_score": null, "exploitability": null, "weighted_severity": null, "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-1cxk-wn3b-jycq" }, { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/8418?format=api", "vulnerability_id": "VCID-3stp-shy4-dudr", "summary": "Synapse is an open source home server implementation for the Matrix chat network. In versions prior to 1.61.1 URL previews of some web pages can exhaust the available stack space for the Synapse process due to unbounded recursion. This is sometimes recoverable and leads to an error for the request causing the problem, but in other cases the Synapse process may crash altogether. It is possible to exploit this maliciously, either by malicious users on the homeserver, or by remote users sending URLs that a local user's client may automatically request a URL preview for. Remote users are not able to exploit this directly, because the URL preview endpoint is authenticated. Deployments with `url_preview_enabled: false` set in configuration are not affected. Deployments with `url_preview_enabled: true` set in configuration **are** affected. Deployments with no configuration value set for `url_preview_enabled` are not affected, because the default is `false`. Administrators of homeservers with URL previews enabled are advised to upgrade to v1.61.1 or higher. Users unable to upgrade should set `url_preview_enabled` to false.", "references": [ { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2022-31052", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.00376", "scoring_system": "epss", "scoring_elements": "0.59458", "published_at": "2026-05-30T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2022-31052" }, { "reference_url": "https://github.com/matrix-org/synapse/commit/fa1308061802ac7b7d20e954ba7372c5ac292333", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/matrix-org/synapse/commit/fa1308061802ac7b7d20e954ba7372c5ac292333" }, { "reference_url": "https://github.com/matrix-org/synapse/security/advisories/GHSA-22p3-qrh9-cx32", "reference_id": "", "reference_type": "", "scores": [ { "value": "HIGH", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" } ], "url": "https://github.com/matrix-org/synapse/security/advisories/GHSA-22p3-qrh9-cx32" }, { "reference_url": "https://github.com/pypa/advisory-database/tree/main/vulns/matrix-synapse/PYSEC-2022-224.yaml", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/pypa/advisory-database/tree/main/vulns/matrix-synapse/PYSEC-2022-224.yaml" }, { "reference_url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7EARKKJZ2W7WUITFDT4EG4NVATFYJQHF", "reference_id": "", "reference_type": "", "scores": [], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7EARKKJZ2W7WUITFDT4EG4NVATFYJQHF" }, { "reference_url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7EARKKJZ2W7WUITFDT4EG4NVATFYJQHF/", "reference_id": "", "reference_type": "", "scores": [], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7EARKKJZ2W7WUITFDT4EG4NVATFYJQHF/" }, { "reference_url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QGSDQ4YAITCUACAB7SXQZDJIU3IQ4CJD", "reference_id": "", "reference_type": "", "scores": [], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QGSDQ4YAITCUACAB7SXQZDJIU3IQ4CJD" }, { "reference_url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QGSDQ4YAITCUACAB7SXQZDJIU3IQ4CJD/", "reference_id": "", "reference_type": "", "scores": [], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QGSDQ4YAITCUACAB7SXQZDJIU3IQ4CJD/" }, { "reference_url": "https://spec.matrix.org/v1.2/client-server-api/#get_matrixmediav3preview_url", "reference_id": "", "reference_type": "", "scores": [], "url": "https://spec.matrix.org/v1.2/client-server-api/#get_matrixmediav3preview_url" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2022-31052", "reference_id": "CVE-2022-31052", "reference_type": "", "scores": [], "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-31052" }, { "reference_url": "https://github.com/advisories/GHSA-22p3-qrh9-cx32", "reference_id": "GHSA-22p3-qrh9-cx32", "reference_type": "", "scores": [ { "value": "HIGH", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" } ], "url": "https://github.com/advisories/GHSA-22p3-qrh9-cx32" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/26988?format=api", "purl": "pkg:pypi/matrix-synapse@1.61.1", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-5fgp-pcfw-33gk" }, { "vulnerability": "VCID-66cm-6sgb-bqft" }, { "vulnerability": "VCID-9wuf-2wxr-z7a8" }, { "vulnerability": "VCID-g7rm-55dm-tybk" }, { "vulnerability": "VCID-mmge-uj6j-k3c2" }, { "vulnerability": "VCID-nmup-uep4-b7hw" }, { "vulnerability": "VCID-pg5k-2upe-dudk" }, { "vulnerability": "VCID-ry9q-34p9-auh6" }, { "vulnerability": "VCID-tug1-g6m1-j3f3" }, { "vulnerability": "VCID-v54a-sjgy-b7ca" }, { "vulnerability": "VCID-z5ga-q6zr-3kb5" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/matrix-synapse@1.61.1" } ], "aliases": [ "CVE-2022-31052", "GHSA-22p3-qrh9-cx32", "PYSEC-2022-224" ], "risk_score": null, "exploitability": null, "weighted_severity": null, "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-3stp-shy4-dudr" }, { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/5211?format=api", "vulnerability_id": "VCID-3tbz-jcb2-4fdn", "summary": "directory traversal", "references": [ { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2021-41281", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.00545", "scoring_system": "epss", "scoring_elements": "0.68092", "published_at": "2026-05-30T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2021-41281" }, { "reference_url": "https://github.com/matrix-org/synapse", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/matrix-org/synapse" }, { "reference_url": "https://github.com/matrix-org/synapse/commit/91f2bd090", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/matrix-org/synapse/commit/91f2bd090" }, { "reference_url": "https://github.com/matrix-org/synapse/releases/tag/v1.47.1", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/matrix-org/synapse/releases/tag/v1.47.1" }, { "reference_url": "https://github.com/matrix-org/synapse/security/advisories/GHSA-3hfw-x7gx-437c", "reference_id": "", "reference_type": "", "scores": [ { "value": "HIGH", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" } ], "url": "https://github.com/matrix-org/synapse/security/advisories/GHSA-3hfw-x7gx-437c" }, { "reference_url": "https://github.com/pypa/advisory-database/tree/main/vulns/matrix-synapse/PYSEC-2021-436.yaml", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/pypa/advisory-database/tree/main/vulns/matrix-synapse/PYSEC-2021-436.yaml" }, { "reference_url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/EU7QRE55U4IUEDLKT5IYPWL3UXMELFAS", "reference_id": "", "reference_type": "", "scores": [], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/EU7QRE55U4IUEDLKT5IYPWL3UXMELFAS" }, { "reference_url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/N3WY56LCEZ4ZECLWV5KMAXF2PSMUB4F2", "reference_id": "", "reference_type": "", "scores": [], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/N3WY56LCEZ4ZECLWV5KMAXF2PSMUB4F2" }, { "reference_url": "https://security.archlinux.org/AVG-2581", "reference_id": "AVG-2581", "reference_type": "", "scores": [ { "value": "Medium", "scoring_system": "archlinux", "scoring_elements": "" } ], "url": "https://security.archlinux.org/AVG-2581" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2021-41281", "reference_id": "CVE-2021-41281", "reference_type": "", "scores": [], "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-41281" }, { "reference_url": "https://github.com/advisories/GHSA-3hfw-x7gx-437c", "reference_id": "GHSA-3hfw-x7gx-437c", "reference_type": "", "scores": [ { "value": "HIGH", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" } ], "url": "https://github.com/advisories/GHSA-3hfw-x7gx-437c" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/23842?format=api", "purl": "pkg:pypi/matrix-synapse@1.47.1", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-3stp-shy4-dudr" }, { "vulnerability": "VCID-5fgp-pcfw-33gk" }, { "vulnerability": "VCID-66cm-6sgb-bqft" }, { "vulnerability": "VCID-9wuf-2wxr-z7a8" }, { "vulnerability": "VCID-g7rm-55dm-tybk" }, { "vulnerability": "VCID-mmge-uj6j-k3c2" }, { "vulnerability": "VCID-nmup-uep4-b7hw" }, { "vulnerability": "VCID-pg5k-2upe-dudk" }, { "vulnerability": "VCID-ry9q-34p9-auh6" }, { "vulnerability": "VCID-tug1-g6m1-j3f3" }, { "vulnerability": "VCID-v54a-sjgy-b7ca" }, { "vulnerability": "VCID-z5ga-q6zr-3kb5" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/matrix-synapse@1.47.1" } ], "aliases": [ "CVE-2021-41281", "GHSA-3hfw-x7gx-437c", "PYSEC-2021-436" ], "risk_score": null, "exploitability": null, "weighted_severity": null, "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-3tbz-jcb2-4fdn" }, { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/5376?format=api", "vulnerability_id": "VCID-43wz-3reu-s3ep", "summary": "information disclosure", "references": [ { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2021-39163", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.002", "scoring_system": "epss", "scoring_elements": "0.41926", "published_at": "2026-05-30T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2021-39163" }, { "reference_url": "https://github.com/matrix-org/synapse", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/matrix-org/synapse" }, { "reference_url": "https://github.com/matrix-org/synapse/commit/cb35df940a", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/matrix-org/synapse/commit/cb35df940a" }, { "reference_url": "https://github.com/matrix-org/synapse/releases/tag/v1.41.1", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/matrix-org/synapse/releases/tag/v1.41.1" }, { "reference_url": "https://github.com/matrix-org/synapse/security/advisories/GHSA-jj53-8fmw-f2w2", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/matrix-org/synapse/security/advisories/GHSA-jj53-8fmw-f2w2" }, { "reference_url": "https://github.com/pypa/advisory-database/tree/main/vulns/matrix-synapse/PYSEC-2021-424.yaml", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/pypa/advisory-database/tree/main/vulns/matrix-synapse/PYSEC-2021-424.yaml" }, { "reference_url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2VHDEPCZ22GJFMZCWA2XZAGPOEV72POF", "reference_id": "", "reference_type": "", "scores": [], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2VHDEPCZ22GJFMZCWA2XZAGPOEV72POF" }, { "reference_url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2VHDEPCZ22GJFMZCWA2XZAGPOEV72POF/", "reference_id": "", "reference_type": "", "scores": [], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2VHDEPCZ22GJFMZCWA2XZAGPOEV72POF/" }, { "reference_url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PXT7ID7DNBRN2TVTETU3SYQHJKEG6PXN", "reference_id": "", "reference_type": "", "scores": [], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PXT7ID7DNBRN2TVTETU3SYQHJKEG6PXN" }, { "reference_url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PXT7ID7DNBRN2TVTETU3SYQHJKEG6PXN/", "reference_id": "", "reference_type": "", "scores": [], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PXT7ID7DNBRN2TVTETU3SYQHJKEG6PXN/" }, { "reference_url": "https://security.archlinux.org/AVG-2334", "reference_id": "AVG-2334", "reference_type": "", "scores": [ { "value": "Medium", "scoring_system": "archlinux", "scoring_elements": "" } ], "url": "https://security.archlinux.org/AVG-2334" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2021-39163", "reference_id": "CVE-2021-39163", "reference_type": "", "scores": [], "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-39163" }, { "reference_url": "https://github.com/advisories/GHSA-jj53-8fmw-f2w2", "reference_id": "GHSA-jj53-8fmw-f2w2", "reference_type": "", "scores": [], "url": "https://github.com/advisories/GHSA-jj53-8fmw-f2w2" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/22274?format=api", "purl": "pkg:pypi/matrix-synapse@1.41.1", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-3stp-shy4-dudr" }, { "vulnerability": "VCID-3tbz-jcb2-4fdn" }, { "vulnerability": "VCID-5fgp-pcfw-33gk" }, { "vulnerability": "VCID-66cm-6sgb-bqft" }, { "vulnerability": "VCID-9wuf-2wxr-z7a8" }, { "vulnerability": "VCID-g7rm-55dm-tybk" }, { "vulnerability": "VCID-mmge-uj6j-k3c2" }, { "vulnerability": "VCID-nmup-uep4-b7hw" }, { "vulnerability": "VCID-pg5k-2upe-dudk" }, { "vulnerability": "VCID-ry9q-34p9-auh6" }, { "vulnerability": "VCID-tug1-g6m1-j3f3" }, { "vulnerability": "VCID-v54a-sjgy-b7ca" }, { "vulnerability": "VCID-z5ga-q6zr-3kb5" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/matrix-synapse@1.41.1" } ], "aliases": [ "CVE-2021-39163", "GHSA-jj53-8fmw-f2w2", "PYSEC-2021-424" ], "risk_score": null, "exploitability": null, "weighted_severity": null, "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-43wz-3reu-s3ep" }, { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/8066?format=api", "vulnerability_id": "VCID-5b91-nm22-5uh4", "summary": "Synapse is a Matrix reference homeserver written in python (pypi package matrix-synapse). Matrix is an ecosystem for open federated Instant Messaging and VoIP. In Synapse before version 1.27.0, the notification emails sent for notifications for missed messages or for an expiring account are subject to HTML injection. In the case of the notification for missed messages, this could allow an attacker to insert forged content into the email. The account expiry feature is not enabled by default and the HTML injection is not controllable by an attacker. This is fixed in version 1.27.0.", "references": [ { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2021-21333", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.00385", "scoring_system": "epss", "scoring_elements": "0.59988", "published_at": "2026-05-30T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2021-21333" }, { "reference_url": "https://github.com/matrix-org/synapse/commit/e54746bdf7d5c831eabe4dcea76a7626f1de73df", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/matrix-org/synapse/commit/e54746bdf7d5c831eabe4dcea76a7626f1de73df" }, { "reference_url": "https://github.com/matrix-org/synapse/pull/9200", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/matrix-org/synapse/pull/9200" }, { "reference_url": "https://github.com/matrix-org/synapse/releases/tag/v1.27.0", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/matrix-org/synapse/releases/tag/v1.27.0" }, { "reference_url": "https://github.com/matrix-org/synapse/security/advisories/GHSA-c5f8-35qr-q4fm", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/matrix-org/synapse/security/advisories/GHSA-c5f8-35qr-q4fm" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/19233?format=api", "purl": "pkg:pypi/matrix-synapse@1.27.0", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-1cxk-wn3b-jycq" }, { "vulnerability": "VCID-3stp-shy4-dudr" }, { "vulnerability": "VCID-3tbz-jcb2-4fdn" }, { "vulnerability": "VCID-43wz-3reu-s3ep" }, { "vulnerability": "VCID-5fgp-pcfw-33gk" }, { "vulnerability": "VCID-66cm-6sgb-bqft" }, { "vulnerability": "VCID-arh5-tp1n-nubq" }, { "vulnerability": "VCID-g7rm-55dm-tybk" }, { "vulnerability": "VCID-jg9y-53m4-5bb6" }, { "vulnerability": "VCID-k689-rvyd-e3hp" }, { "vulnerability": "VCID-mmge-uj6j-k3c2" }, { "vulnerability": "VCID-nmup-uep4-b7hw" }, { "vulnerability": "VCID-pg5k-2upe-dudk" }, { "vulnerability": "VCID-ry9q-34p9-auh6" }, { "vulnerability": "VCID-tug1-g6m1-j3f3" }, { "vulnerability": "VCID-v54a-sjgy-b7ca" }, { "vulnerability": "VCID-z5ga-q6zr-3kb5" }, { "vulnerability": "VCID-zvev-sm5c-suh6" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/matrix-synapse@1.27.0" } ], "aliases": [ "CVE-2021-21333", "GHSA-c5f8-35qr-q4fm", "PYSEC-2021-134" ], "risk_score": null, "exploitability": null, "weighted_severity": null, "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-5b91-nm22-5uh4" }, { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/7709?format=api", "vulnerability_id": "VCID-5d98-hf1n-17aq", "summary": "An issue was discovered in Matrix Sydent before 1.0.3 and Synapse before 0.99.3.1. Random number generation is mishandled, which makes it easier for attackers to predict a Sydent authentication token or a Synapse random ID.", "references": [ { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2019-11842", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.00407", "scoring_system": "epss", "scoring_elements": "0.6143", "published_at": "2026-05-30T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2019-11842" }, { "reference_url": "https://github.com/advisories/GHSA-gwf7-vfjf-wf6x", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/advisories/GHSA-gwf7-vfjf-wf6x" }, { "reference_url": "https://matrix.org/blog/2019/05/03/security-updates-sydent-1-0-3-synapse-0-99-3-1-and-riot-android-0-9-0-0-8-99-0-8-28-a/", "reference_id": "", "reference_type": "", "scores": [], "url": "https://matrix.org/blog/2019/05/03/security-updates-sydent-1-0-3-synapse-0-99-3-1-and-riot-android-0-9-0-0-8-99-0-8-28-a/" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/12236?format=api", "purl": "pkg:pypi/matrix-synapse@0.99.3.1", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-1cxk-wn3b-jycq" }, { "vulnerability": "VCID-3stp-shy4-dudr" }, { "vulnerability": "VCID-3tbz-jcb2-4fdn" }, { "vulnerability": "VCID-43wz-3reu-s3ep" }, { "vulnerability": "VCID-5b91-nm22-5uh4" }, { "vulnerability": "VCID-5fgp-pcfw-33gk" }, { "vulnerability": "VCID-66cm-6sgb-bqft" }, { "vulnerability": "VCID-arh5-tp1n-nubq" }, { "vulnerability": "VCID-cff6-n5gz-jfhe" }, { "vulnerability": "VCID-fmqv-a8qr-gqfz" }, { "vulnerability": "VCID-g7rm-55dm-tybk" }, { "vulnerability": "VCID-jg9y-53m4-5bb6" }, { "vulnerability": "VCID-k689-rvyd-e3hp" }, { "vulnerability": "VCID-mmge-uj6j-k3c2" }, { "vulnerability": "VCID-ng8b-cs3a-cqa7" }, { "vulnerability": "VCID-nmup-uep4-b7hw" }, { "vulnerability": "VCID-pg5k-2upe-dudk" }, { "vulnerability": "VCID-ry9q-34p9-auh6" }, { "vulnerability": "VCID-sh81-25ty-4bgn" }, { "vulnerability": "VCID-sqmn-ffjr-s7bc" }, { "vulnerability": "VCID-tug1-g6m1-j3f3" }, { "vulnerability": "VCID-v54a-sjgy-b7ca" }, { "vulnerability": "VCID-vb2z-kkev-aues" }, { "vulnerability": "VCID-z5ga-q6zr-3kb5" }, { "vulnerability": "VCID-zdxd-83uy-hbad" }, { "vulnerability": "VCID-zvev-sm5c-suh6" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/matrix-synapse@0.99.3.1" } ], "aliases": [ "CVE-2019-11842", "GHSA-gwf7-vfjf-wf6x", "PYSEC-2019-185" ], "risk_score": null, "exploitability": null, "weighted_severity": null, "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-5d98-hf1n-17aq" }, { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/8903?format=api", "vulnerability_id": "VCID-5fgp-pcfw-33gk", "summary": "Synapse is an open-source Matrix homeserver written and maintained by the Matrix.org Foundation. Prior to version 1.94.0, a malicious server ACL event can impact performance temporarily or permanently leading to a persistent denial of service. Homeservers running on a closed federation (which presumably do not need to use server ACLs) are not affected. Server administrators are advised to upgrade to Synapse 1.94.0 or later. As a workaround, rooms with malicious server ACL events can be purged and blocked using the admin API.", "references": [ { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2023-45129", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.00266", "scoring_system": "epss", "scoring_elements": "0.50246", "published_at": "2026-05-30T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2023-45129" }, { "reference_url": "https://github.com/matrix-org/synapse", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/matrix-org/synapse" }, { "reference_url": "https://github.com/matrix-org/synapse/commit/f84da3c32ec74cf054e2fd6d10618aa4997cffaa", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/matrix-org/synapse/commit/f84da3c32ec74cf054e2fd6d10618aa4997cffaa" }, { "reference_url": "https://github.com/matrix-org/synapse/pull/16360", "reference_id": "", "reference_type": "", "scores": [ { "value": "4.9", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H" } ], "url": "https://github.com/matrix-org/synapse/pull/16360" }, { "reference_url": "https://github.com/matrix-org/synapse/security/advisories/GHSA-5chr-wjw5-3gq4", "reference_id": "", "reference_type": "", "scores": [ { "value": "4.9", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H" } ], "url": "https://github.com/matrix-org/synapse/security/advisories/GHSA-5chr-wjw5-3gq4" }, { "reference_url": "https://github.com/pypa/advisory-database/tree/main/vulns/matrix-synapse/PYSEC-2023-199.yaml", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/pypa/advisory-database/tree/main/vulns/matrix-synapse/PYSEC-2023-199.yaml" }, { "reference_url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KEVRB4MG5UXQ5RLZHSUJXM5GWEBYYS5B", "reference_id": "", "reference_type": "", "scores": [], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KEVRB4MG5UXQ5RLZHSUJXM5GWEBYYS5B" }, { "reference_url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/N6P4QULVUE254WI7XF2LWWOGHCYVFXFY", "reference_id": "", "reference_type": "", "scores": [], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/N6P4QULVUE254WI7XF2LWWOGHCYVFXFY" }, { "reference_url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WRO4MPQ6HOXIUZM6RJP6VTCTMV7RD2T3", "reference_id": "", "reference_type": "", "scores": [], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WRO4MPQ6HOXIUZM6RJP6VTCTMV7RD2T3" }, { "reference_url": "https://matrix-org.github.io/synapse/latest/admin_api/rooms.html#version-2-new-version", "reference_id": "", "reference_type": "", "scores": [ { "value": "4.9", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H" } ], "url": "https://matrix-org.github.io/synapse/latest/admin_api/rooms.html#version-2-new-version" }, { "reference_url": "https://security.gentoo.org/glsa/202401-12", "reference_id": "", "reference_type": "", "scores": [], "url": "https://security.gentoo.org/glsa/202401-12" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2023-45129", "reference_id": "CVE-2023-45129", "reference_type": "", "scores": [], "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-45129" }, { "reference_url": "https://github.com/advisories/GHSA-5chr-wjw5-3gq4", "reference_id": "GHSA-5chr-wjw5-3gq4", "reference_type": "", "scores": [], "url": "https://github.com/advisories/GHSA-5chr-wjw5-3gq4" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/35214?format=api", "purl": "pkg:pypi/matrix-synapse@1.94.0", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-g7rm-55dm-tybk" }, { "vulnerability": "VCID-nmup-uep4-b7hw" }, { "vulnerability": "VCID-ry9q-34p9-auh6" }, { "vulnerability": "VCID-tug1-g6m1-j3f3" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/matrix-synapse@1.94.0" } ], "aliases": [ "CVE-2023-45129", "GHSA-5chr-wjw5-3gq4", "PYSEC-2023-199" ], "risk_score": null, "exploitability": null, "weighted_severity": null, "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-5fgp-pcfw-33gk" }, { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/8788?format=api", "vulnerability_id": "VCID-66cm-6sgb-bqft", "summary": "Synapse is an open-source Matrix homeserver written and maintained by the Matrix.org Foundation. The Matrix Federation API allows remote homeservers to request the authorization events in a room. This is necessary so that a homeserver receiving some events can validate that those events are legitimate and permitted in their room. However, in versions of Synapse up to and including 1.68.0, a Synapse homeserver answering a query for authorization events does not sufficiently check that the requesting server should be able to access them. The issue was patched in Synapse 1.69.0. Homeserver administrators are advised to upgrade.", "references": [ { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2022-39335", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.00149", "scoring_system": "epss", "scoring_elements": "0.35159", "published_at": "2026-05-30T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2022-39335" }, { "reference_url": "https://github.com/matrix-org/synapse", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/matrix-org/synapse" }, { "reference_url": "https://github.com/matrix-org/synapse/issues/13288", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/matrix-org/synapse/issues/13288" }, { "reference_url": "https://github.com/matrix-org/synapse/pull/13823", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/matrix-org/synapse/pull/13823" }, { "reference_url": "https://github.com/matrix-org/synapse/security/advisories/GHSA-45cj-f97f-ggwv", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/matrix-org/synapse/security/advisories/GHSA-45cj-f97f-ggwv" }, { "reference_url": "https://github.com/pypa/advisory-database/tree/main/vulns/matrix-synapse/PYSEC-2023-65.yaml", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/pypa/advisory-database/tree/main/vulns/matrix-synapse/PYSEC-2023-65.yaml" }, { "reference_url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/T2MBNMZAFY4RCZL2VGBGAPKGB4JUPZVS", "reference_id": "", "reference_type": "", "scores": [], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/T2MBNMZAFY4RCZL2VGBGAPKGB4JUPZVS" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2022-39335", "reference_id": "CVE-2022-39335", "reference_type": "", "scores": [], "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-39335" }, { "reference_url": "https://github.com/advisories/GHSA-45cj-f97f-ggwv", "reference_id": "GHSA-45cj-f97f-ggwv", "reference_type": "", "scores": [], "url": "https://github.com/advisories/GHSA-45cj-f97f-ggwv" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/32721?format=api", "purl": "pkg:pypi/matrix-synapse@1.69.0", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-5fgp-pcfw-33gk" }, { "vulnerability": "VCID-9wuf-2wxr-z7a8" }, { "vulnerability": "VCID-g7rm-55dm-tybk" }, { "vulnerability": "VCID-nmup-uep4-b7hw" }, { "vulnerability": "VCID-pg5k-2upe-dudk" }, { "vulnerability": "VCID-ry9q-34p9-auh6" }, { "vulnerability": "VCID-tug1-g6m1-j3f3" }, { "vulnerability": "VCID-v54a-sjgy-b7ca" }, { "vulnerability": "VCID-x5jc-ezaq-xudd" }, { "vulnerability": "VCID-z5ga-q6zr-3kb5" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/matrix-synapse@1.69.0" } ], "aliases": [ "CVE-2022-39335", "GHSA-45cj-f97f-ggwv", "PYSEC-2023-65" ], "risk_score": null, "exploitability": null, "weighted_severity": null, "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-66cm-6sgb-bqft" }, { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/5375?format=api", "vulnerability_id": "VCID-arh5-tp1n-nubq", "summary": "information disclosure", "references": [ { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2021-39164", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.00271", "scoring_system": "epss", "scoring_elements": "0.50746", "published_at": "2026-05-30T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2021-39164" }, { "reference_url": "https://github.com/matrix-org/synapse", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/matrix-org/synapse" }, { "reference_url": "https://github.com/matrix-org/synapse/commit/cb35df940a", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/matrix-org/synapse/commit/cb35df940a" }, { "reference_url": "https://github.com/matrix-org/synapse/releases/tag/v1.41.1", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/matrix-org/synapse/releases/tag/v1.41.1" }, { "reference_url": "https://github.com/matrix-org/synapse/security/advisories/GHSA-3x4c-pq33-4w3q", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/matrix-org/synapse/security/advisories/GHSA-3x4c-pq33-4w3q" }, { "reference_url": "https://github.com/pypa/advisory-database/tree/main/vulns/matrix-synapse/PYSEC-2021-425.yaml", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/pypa/advisory-database/tree/main/vulns/matrix-synapse/PYSEC-2021-425.yaml" }, { "reference_url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2VHDEPCZ22GJFMZCWA2XZAGPOEV72POF", "reference_id": "", "reference_type": "", "scores": [], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2VHDEPCZ22GJFMZCWA2XZAGPOEV72POF" }, { "reference_url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2VHDEPCZ22GJFMZCWA2XZAGPOEV72POF/", "reference_id": "", "reference_type": "", "scores": [], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2VHDEPCZ22GJFMZCWA2XZAGPOEV72POF/" }, { "reference_url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PXT7ID7DNBRN2TVTETU3SYQHJKEG6PXN", "reference_id": "", "reference_type": "", "scores": [], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PXT7ID7DNBRN2TVTETU3SYQHJKEG6PXN" }, { "reference_url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PXT7ID7DNBRN2TVTETU3SYQHJKEG6PXN/", "reference_id": "", "reference_type": "", "scores": [], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PXT7ID7DNBRN2TVTETU3SYQHJKEG6PXN/" }, { "reference_url": "https://security.archlinux.org/AVG-2334", "reference_id": "AVG-2334", "reference_type": "", "scores": [ { "value": "Medium", "scoring_system": "archlinux", "scoring_elements": "" } ], "url": "https://security.archlinux.org/AVG-2334" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2021-39164", "reference_id": "CVE-2021-39164", "reference_type": "", "scores": [], "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-39164" }, { "reference_url": "https://github.com/advisories/GHSA-3x4c-pq33-4w3q", "reference_id": "GHSA-3x4c-pq33-4w3q", "reference_type": "", "scores": [], "url": "https://github.com/advisories/GHSA-3x4c-pq33-4w3q" } ], 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"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/32Y6KD3OAHCG5P33HC2QEX3NUZOSXCGZ", "reference_id": "", "reference_type": "", "scores": [], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/32Y6KD3OAHCG5P33HC2QEX3NUZOSXCGZ" }, { "reference_url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/32Y6KD3OAHCG5P33HC2QEX3NUZOSXCGZ/", "reference_id": "", "reference_type": "", "scores": [], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/32Y6KD3OAHCG5P33HC2QEX3NUZOSXCGZ/" }, { "reference_url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VMCLO5PUPBA756UKY72PKUWL4RRM4W6K", "reference_id": "", "reference_type": "", "scores": [], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VMCLO5PUPBA756UKY72PKUWL4RRM4W6K" }, { "reference_url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VMCLO5PUPBA756UKY72PKUWL4RRM4W6K/", "reference_id": "", "reference_type": "", "scores": [], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VMCLO5PUPBA756UKY72PKUWL4RRM4W6K/" }, { "reference_url": "https://matrix.org/blog/2019/01/10/critical-security-update-synapse-0-34-0-1-synapse-0-34-1-1", "reference_id": "", "reference_type": "", "scores": [], "url": "https://matrix.org/blog/2019/01/10/critical-security-update-synapse-0-34-0-1-synapse-0-34-1-1" }, { "reference_url": "https://matrix.org/blog/2019/01/10/critical-security-update-synapse-0-34-0-1-synapse-0-34-1-1/", "reference_id": "", "reference_type": "", "scores": [], "url": 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"https://security.archlinux.org/ASA-201901-12" }, { "reference_url": "https://security.archlinux.org/AVG-846", "reference_id": "AVG-846", "reference_type": "", "scores": [ { "value": "High", "scoring_system": "archlinux", "scoring_elements": "" } ], "url": "https://security.archlinux.org/AVG-846" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2019-5885", "reference_id": "CVE-2019-5885", "reference_type": "", "scores": [], "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-5885" }, { "reference_url": "https://github.com/advisories/GHSA-jrqm-v8cv-53ww", "reference_id": "GHSA-jrqm-v8cv-53ww", "reference_type": "", "scores": [ { "value": "HIGH", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" } ], "url": "https://github.com/advisories/GHSA-jrqm-v8cv-53ww" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/11880?format=api", "purl": "pkg:pypi/matrix-synapse@0.34.0.1", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": 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"vulnerability": "VCID-z5ga-q6zr-3kb5" }, { "vulnerability": "VCID-zdxd-83uy-hbad" }, { "vulnerability": "VCID-zvev-sm5c-suh6" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/matrix-synapse@0.34.0.1" } ], "aliases": [ "CVE-2019-5885", "GHSA-jrqm-v8cv-53ww", "PYSEC-2019-187" ], "risk_score": null, "exploitability": null, "weighted_severity": null, "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-ary1-cnnt-duhg" }, { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/5933?format=api", "vulnerability_id": "VCID-cff6-n5gz-jfhe", "summary": "denial of service", "references": [ { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2020-26257", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.0045", "scoring_system": "epss", "scoring_elements": "0.63934", "published_at": "2026-05-30T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2020-26257" }, { "reference_url": 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"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DBTIU3ZNBFWZ56V4X7JIAD33V5H2GOMC/", "reference_id": "", "reference_type": "", "scores": [], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DBTIU3ZNBFWZ56V4X7JIAD33V5H2GOMC/" }, { "reference_url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QR4MMYZKX5N5GYGH4H5LBUUC5TLAFHI7/", "reference_id": "", "reference_type": "", "scores": [], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QR4MMYZKX5N5GYGH4H5LBUUC5TLAFHI7/" }, { "reference_url": "https://security.archlinux.org/AVG-1341", "reference_id": "AVG-1341", "reference_type": "", "scores": [ { "value": "Medium", "scoring_system": "archlinux", "scoring_elements": "" } ], "url": "https://security.archlinux.org/AVG-1341" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/18071?format=api", "purl": "pkg:pypi/matrix-synapse@1.23.1", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-1cxk-wn3b-jycq" }, { "vulnerability": "VCID-3stp-shy4-dudr" }, { "vulnerability": "VCID-3tbz-jcb2-4fdn" }, { "vulnerability": "VCID-43wz-3reu-s3ep" }, { "vulnerability": "VCID-5b91-nm22-5uh4" }, { "vulnerability": "VCID-5fgp-pcfw-33gk" }, { "vulnerability": "VCID-66cm-6sgb-bqft" }, { "vulnerability": "VCID-arh5-tp1n-nubq" }, { "vulnerability": "VCID-fmqv-a8qr-gqfz" }, { "vulnerability": "VCID-g7rm-55dm-tybk" }, { "vulnerability": "VCID-jg9y-53m4-5bb6" }, { "vulnerability": "VCID-k689-rvyd-e3hp" }, { "vulnerability": "VCID-mmge-uj6j-k3c2" }, { "vulnerability": "VCID-nmup-uep4-b7hw" }, { "vulnerability": "VCID-pg5k-2upe-dudk" }, { "vulnerability": "VCID-ry9q-34p9-auh6" }, { "vulnerability": "VCID-sqmn-ffjr-s7bc" }, { "vulnerability": "VCID-tug1-g6m1-j3f3" }, { "vulnerability": "VCID-v54a-sjgy-b7ca" }, { "vulnerability": "VCID-vb2z-kkev-aues" }, { "vulnerability": "VCID-z5ga-q6zr-3kb5" }, { "vulnerability": "VCID-zvev-sm5c-suh6" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/matrix-synapse@1.23.1" } ], "aliases": [ "CVE-2020-26257", "GHSA-hxmp-pqch-c8mm", "PYSEC-2020-236" ], "risk_score": null, "exploitability": null, "weighted_severity": null, "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-cff6-n5gz-jfhe" }, { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/8067?format=api", "vulnerability_id": "VCID-fmqv-a8qr-gqfz", "summary": "Synapse is a Matrix reference homeserver written in python (pypi package matrix-synapse). Matrix is an ecosystem for open federated Instant Messaging and VoIP. In Synapse before version 1.27.0, the password reset endpoint served via Synapse was vulnerable to cross-site scripting (XSS) attacks. The impact depends on the configuration of the domain that Synapse is deployed on, but may allow access to cookies and other browser data, CSRF vulnerabilities, and access to other resources served on the same domain or parent domains. This is fixed in version 1.27.0.", "references": [ { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2021-21332", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.00505", "scoring_system": "epss", "scoring_elements": "0.66505", "published_at": "2026-05-30T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2021-21332" }, { "reference_url": "https://github.com/matrix-org/synapse/commit/e54746bdf7d5c831eabe4dcea76a7626f1de73df", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/matrix-org/synapse/commit/e54746bdf7d5c831eabe4dcea76a7626f1de73df" }, { "reference_url": "https://github.com/matrix-org/synapse/pull/9200", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/matrix-org/synapse/pull/9200" }, { "reference_url": "https://github.com/matrix-org/synapse/releases/tag/v1.27.0", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/matrix-org/synapse/releases/tag/v1.27.0" }, { "reference_url": "https://github.com/matrix-org/synapse/security/advisories/GHSA-246w-56m2-5899", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/matrix-org/synapse/security/advisories/GHSA-246w-56m2-5899" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/19233?format=api", "purl": "pkg:pypi/matrix-synapse@1.27.0", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-1cxk-wn3b-jycq" }, { "vulnerability": "VCID-3stp-shy4-dudr" }, { "vulnerability": "VCID-3tbz-jcb2-4fdn" }, { "vulnerability": "VCID-43wz-3reu-s3ep" }, { "vulnerability": "VCID-5fgp-pcfw-33gk" }, { "vulnerability": "VCID-66cm-6sgb-bqft" }, { "vulnerability": "VCID-arh5-tp1n-nubq" }, { "vulnerability": "VCID-g7rm-55dm-tybk" }, { "vulnerability": "VCID-jg9y-53m4-5bb6" }, { "vulnerability": "VCID-k689-rvyd-e3hp" }, { "vulnerability": "VCID-mmge-uj6j-k3c2" }, { "vulnerability": "VCID-nmup-uep4-b7hw" }, { "vulnerability": "VCID-pg5k-2upe-dudk" }, { "vulnerability": "VCID-ry9q-34p9-auh6" }, { "vulnerability": "VCID-tug1-g6m1-j3f3" }, { "vulnerability": "VCID-v54a-sjgy-b7ca" }, { "vulnerability": "VCID-z5ga-q6zr-3kb5" }, { "vulnerability": "VCID-zvev-sm5c-suh6" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/matrix-synapse@1.27.0" } ], "aliases": [ "CVE-2021-21332", "GHSA-246w-56m2-5899", "PYSEC-2021-133" ], "risk_score": null, "exploitability": null, "weighted_severity": null, "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-fmqv-a8qr-gqfz" }, { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/9283?format=api", "vulnerability_id": "VCID-g7rm-55dm-tybk", "summary": "Synapse is an open-source Matrix homeserver. Synapse versions before 1.106 are vulnerable to a disk fill attack, where an unauthenticated adversary can induce Synapse to download and cache large amounts of remote media. The default rate limit strategy is insufficient to mitigate this. This can lead to a denial of service, ranging from further media uploads/downloads failing to completely unavailability of the Synapse process, depending on how Synapse was deployed. Synapse 1.106 introduces a new \"leaky bucket\" rate limit on remote media downloads to reduce the amount of data a user can request at a time. This does not fully address the issue, but does limit an unauthenticated user's ability to request large amounts of data to be cached.", "references": [ { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2024-37302", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.00568", "scoring_system": "epss", "scoring_elements": "0.68844", "published_at": "2026-05-30T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2024-37302" }, { "reference_url": "https://github.com/element-hq/synapse/security/advisories/GHSA-4mhg-xv73-xq2x", "reference_id": "", "reference_type": "", "scores": [ { "value": "7.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H" } ], "url": "https://github.com/element-hq/synapse/security/advisories/GHSA-4mhg-xv73-xq2x" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/43088?format=api", "purl": "pkg:pypi/matrix-synapse@1.106.0", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/matrix-synapse@1.106.0" } ], "aliases": [ "CVE-2024-37302", "GHSA-4mhg-xv73-xq2x", "PYSEC-2024-286" ], "risk_score": null, "exploitability": null, "weighted_severity": null, "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-g7rm-55dm-tybk" }, { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/5617?format=api", "vulnerability_id": "VCID-jg9y-53m4-5bb6", "summary": "denial of service", "references": [ { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2021-29471", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.00337", "scoring_system": "epss", "scoring_elements": "0.56765", "published_at": "2026-05-30T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2021-29471" }, { "reference_url": "https://github.com/matrix-org/synapse/commit/03318a766cac9f8b053db2214d9c332a977d226c", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/matrix-org/synapse/commit/03318a766cac9f8b053db2214d9c332a977d226c" }, { "reference_url": "https://github.com/matrix-org/synapse/releases/tag/v1.33.2", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/matrix-org/synapse/releases/tag/v1.33.2" }, { "reference_url": "https://github.com/matrix-org/synapse/security/advisories/GHSA-x345-32rc-8h85", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/matrix-org/synapse/security/advisories/GHSA-x345-32rc-8h85" }, { "reference_url": "https://security.archlinux.org/ASA-202105-19", "reference_id": "ASA-202105-19", "reference_type": "", "scores": [], "url": "https://security.archlinux.org/ASA-202105-19" }, { "reference_url": "https://security.archlinux.org/AVG-1943", "reference_id": "AVG-1943", "reference_type": "", "scores": [ { "value": "Medium", "scoring_system": "archlinux", "scoring_elements": "" } ], "url": "https://security.archlinux.org/AVG-1943" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/20651?format=api", "purl": "pkg:pypi/matrix-synapse@1.33.2", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-3stp-shy4-dudr" }, { "vulnerability": "VCID-3tbz-jcb2-4fdn" }, { "vulnerability": "VCID-43wz-3reu-s3ep" }, { "vulnerability": "VCID-5fgp-pcfw-33gk" }, { "vulnerability": "VCID-66cm-6sgb-bqft" }, { "vulnerability": "VCID-arh5-tp1n-nubq" }, { "vulnerability": "VCID-g7rm-55dm-tybk" }, { "vulnerability": "VCID-mmge-uj6j-k3c2" }, { "vulnerability": "VCID-nmup-uep4-b7hw" }, { "vulnerability": "VCID-pg5k-2upe-dudk" }, { "vulnerability": "VCID-ry9q-34p9-auh6" }, { "vulnerability": "VCID-tug1-g6m1-j3f3" }, { "vulnerability": "VCID-v54a-sjgy-b7ca" }, { "vulnerability": "VCID-z5ga-q6zr-3kb5" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/matrix-synapse@1.33.2" } ], "aliases": [ "CVE-2021-29471", "GHSA-x345-32rc-8h85", "PYSEC-2021-135" ], "risk_score": null, "exploitability": null, "weighted_severity": null, "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-jg9y-53m4-5bb6" }, { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/8074?format=api", "vulnerability_id": "VCID-k689-rvyd-e3hp", "summary": "Synapse is a Matrix reference homeserver written in python (pypi package matrix-synapse). Matrix is an ecosystem for open federated Instant Messaging and VoIP. In Synapse before version 1.28.0 Synapse is missing input validation of some parameters on the endpoints used to confirm third-party identifiers could cause excessive use of disk space and memory leading to resource exhaustion. Note that the groups feature is not part of the Matrix specification and the chosen maximum lengths are arbitrary. Not all clients might abide by them. Refer to referenced GitHub security advisory for additional details including workarounds.", "references": [ { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2021-21394", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.00519", "scoring_system": "epss", "scoring_elements": "0.67078", "published_at": "2026-05-30T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2021-21394" }, { "reference_url": "https://github.com/matrix-org/synapse/pull/9321", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/matrix-org/synapse/pull/9321" }, { "reference_url": "https://github.com/matrix-org/synapse/pull/9393", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/matrix-org/synapse/pull/9393" }, { "reference_url": "https://github.com/matrix-org/synapse/security/advisories/GHSA-w9fg-xffh-p362", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/matrix-org/synapse/security/advisories/GHSA-w9fg-xffh-p362" }, { "reference_url": "https://pypi.org/project/matrix-synapse/", "reference_id": "", "reference_type": "", "scores": [], "url": "https://pypi.org/project/matrix-synapse/" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/20260?format=api", "purl": "pkg:pypi/matrix-synapse@1.28.0", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-3stp-shy4-dudr" }, { "vulnerability": "VCID-3tbz-jcb2-4fdn" }, { "vulnerability": "VCID-43wz-3reu-s3ep" }, { "vulnerability": "VCID-5fgp-pcfw-33gk" }, { "vulnerability": "VCID-66cm-6sgb-bqft" }, { "vulnerability": "VCID-arh5-tp1n-nubq" }, { "vulnerability": "VCID-g7rm-55dm-tybk" }, { "vulnerability": "VCID-jg9y-53m4-5bb6" }, { "vulnerability": "VCID-mmge-uj6j-k3c2" }, { "vulnerability": "VCID-nmup-uep4-b7hw" }, { "vulnerability": "VCID-pg5k-2upe-dudk" }, { "vulnerability": "VCID-ry9q-34p9-auh6" }, { "vulnerability": "VCID-tug1-g6m1-j3f3" }, { "vulnerability": "VCID-v54a-sjgy-b7ca" }, { "vulnerability": "VCID-z5ga-q6zr-3kb5" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/matrix-synapse@1.28.0" } ], "aliases": [ "CVE-2021-21394", "GHSA-w9fg-xffh-p362", "PYSEC-2021-27" ], "risk_score": null, "exploitability": null, "weighted_severity": null, "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-k689-rvyd-e3hp" }, { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/8466?format=api", "vulnerability_id": "VCID-mmge-uj6j-k3c2", "summary": "Synapse is an open-source Matrix homeserver written and maintained by the Matrix.org Foundation. The Matrix specification specifies a list of [event authorization rules](https://spec.matrix.org/v1.2/rooms/v9/#authorization-rules) which must be checked when determining if an event should be accepted into a room. In versions of Synapse up to and including version 1.61.0, some of these rules are not correctly applied. An attacker could craft events which would be accepted by Synapse but not a spec-conformant server, potentially causing divergence in the room state between servers. Administrators of homeservers with federation enabled are advised to upgrade to version 1.62.0 or higher. Federation can be disabled by setting [`federation_domain_whitelist`](https://matrix-org.github.io/synapse/latest/usage/configuration/config_documentation.html#federation_domain_whitelist) to an empty list (`[]`) as a workaround.", "references": [ { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2022-31152", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.00731", "scoring_system": "epss", "scoring_elements": "0.73006", "published_at": "2026-05-30T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2022-31152" }, { "reference_url": "https://github.com/matrix-org/synapse/commit/d4b1c0d800eaa83c4d56a9cf17881ad362b9194b", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/matrix-org/synapse/commit/d4b1c0d800eaa83c4d56a9cf17881ad362b9194b" }, { "reference_url": "https://github.com/matrix-org/synapse/commit/e16ea87d0f8c4c30cad36f85488eb1f647e640b0", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/matrix-org/synapse/commit/e16ea87d0f8c4c30cad36f85488eb1f647e640b0" }, { "reference_url": "https://github.com/matrix-org/synapse/pull/13087", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/matrix-org/synapse/pull/13087" }, { "reference_url": "https://github.com/matrix-org/synapse/pull/13088", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/matrix-org/synapse/pull/13088" }, { "reference_url": "https://github.com/matrix-org/synapse/releases/tag/v1.62.0", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/matrix-org/synapse/releases/tag/v1.62.0" }, { "reference_url": "https://github.com/matrix-org/synapse/security/advisories/GHSA-jhjh-776m-4765", "reference_id": "", "reference_type": "", "scores": [ { "value": "HIGH", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" } ], "url": "https://github.com/matrix-org/synapse/security/advisories/GHSA-jhjh-776m-4765" }, { "reference_url": "https://github.com/pypa/advisory-database/tree/main/vulns/matrix-synapse/PYSEC-2022-262.yaml", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/pypa/advisory-database/tree/main/vulns/matrix-synapse/PYSEC-2022-262.yaml" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2022-31152", "reference_id": "CVE-2022-31152", "reference_type": "", "scores": [], "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-31152" }, { "reference_url": "https://github.com/advisories/GHSA-jhjh-776m-4765", "reference_id": "GHSA-jhjh-776m-4765", "reference_type": "", "scores": [ { "value": "HIGH", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" } ], "url": "https://github.com/advisories/GHSA-jhjh-776m-4765" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/27894?format=api", "purl": "pkg:pypi/matrix-synapse@1.62.0rc1", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-5fgp-pcfw-33gk" }, { "vulnerability": "VCID-66cm-6sgb-bqft" }, { "vulnerability": "VCID-9wuf-2wxr-z7a8" }, { "vulnerability": "VCID-g7rm-55dm-tybk" }, { "vulnerability": "VCID-mmge-uj6j-k3c2" }, { "vulnerability": "VCID-nmup-uep4-b7hw" }, { "vulnerability": "VCID-pg5k-2upe-dudk" }, { "vulnerability": "VCID-ry9q-34p9-auh6" }, { "vulnerability": "VCID-tug1-g6m1-j3f3" }, { "vulnerability": "VCID-v54a-sjgy-b7ca" }, { "vulnerability": "VCID-z5ga-q6zr-3kb5" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/matrix-synapse@1.62.0rc1" }, { "url": "http://public2.vulnerablecode.io/api/packages/27897?format=api", "purl": "pkg:pypi/matrix-synapse@1.62.0", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-1z78-c7my-5fbp" }, { "vulnerability": "VCID-5fgp-pcfw-33gk" }, { "vulnerability": "VCID-66cm-6sgb-bqft" }, { "vulnerability": "VCID-9wuf-2wxr-z7a8" }, { "vulnerability": "VCID-g7rm-55dm-tybk" }, { "vulnerability": "VCID-nmup-uep4-b7hw" }, { "vulnerability": "VCID-pg5k-2upe-dudk" }, { "vulnerability": "VCID-ry9q-34p9-auh6" }, { "vulnerability": "VCID-tug1-g6m1-j3f3" }, { "vulnerability": "VCID-v54a-sjgy-b7ca" }, { "vulnerability": "VCID-z5ga-q6zr-3kb5" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/matrix-synapse@1.62.0" } ], "aliases": [ "CVE-2022-31152", "GHSA-jhjh-776m-4765", "PYSEC-2022-262" ], "risk_score": null, "exploitability": null, "weighted_severity": null, "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-mmge-uj6j-k3c2" }, { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/7775?format=api", "vulnerability_id": "VCID-ng8b-cs3a-cqa7", "summary": "Matrix Synapse before 1.5.0 mishandles signature checking on some federation APIs. Events sent over /send_join, /send_leave, and /invite may not be correctly signed, or may not come from the expected servers.", "references": [ { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2019-18835", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.00191", "scoring_system": "epss", "scoring_elements": "0.40835", "published_at": "2026-05-30T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2019-18835" }, { "reference_url": "https://github.com/advisories/GHSA-cppw-2mf8-qpm5", "reference_id": "", "reference_type": "", "scores": [ { "value": "HIGH", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" } ], "url": "https://github.com/advisories/GHSA-cppw-2mf8-qpm5" }, { "reference_url": "https://github.com/matrix-org/synapse/commit/172f264ed38e8bef857552f93114b4ee113a880b", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/matrix-org/synapse/commit/172f264ed38e8bef857552f93114b4ee113a880b" }, { "reference_url": "https://github.com/matrix-org/synapse/pull/6262", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/matrix-org/synapse/pull/6262" }, { "reference_url": "https://github.com/matrix-org/synapse/releases/tag/v1.5.0", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/matrix-org/synapse/releases/tag/v1.5.0" }, { "reference_url": "https://github.com/pypa/advisory-database/tree/main/vulns/matrix-synapse/PYSEC-2019-186.yaml", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/pypa/advisory-database/tree/main/vulns/matrix-synapse/PYSEC-2019-186.yaml" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2019-18835", "reference_id": "CVE-2019-18835", "reference_type": "", "scores": [], "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-18835" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/13280?format=api", "purl": "pkg:pypi/matrix-synapse@1.5.0", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-1cxk-wn3b-jycq" }, { "vulnerability": "VCID-3stp-shy4-dudr" }, { "vulnerability": "VCID-3tbz-jcb2-4fdn" }, { "vulnerability": "VCID-43wz-3reu-s3ep" }, { "vulnerability": "VCID-5b91-nm22-5uh4" }, { "vulnerability": "VCID-5fgp-pcfw-33gk" }, { "vulnerability": "VCID-66cm-6sgb-bqft" }, { "vulnerability": "VCID-arh5-tp1n-nubq" }, { "vulnerability": "VCID-cff6-n5gz-jfhe" }, { "vulnerability": "VCID-fmqv-a8qr-gqfz" }, { "vulnerability": "VCID-g7rm-55dm-tybk" }, { "vulnerability": "VCID-jg9y-53m4-5bb6" }, { "vulnerability": "VCID-k689-rvyd-e3hp" }, { "vulnerability": "VCID-mmge-uj6j-k3c2" }, { "vulnerability": "VCID-nmup-uep4-b7hw" }, { "vulnerability": "VCID-pg5k-2upe-dudk" }, { "vulnerability": "VCID-ry9q-34p9-auh6" }, { "vulnerability": "VCID-sh81-25ty-4bgn" }, { "vulnerability": "VCID-sqmn-ffjr-s7bc" }, { "vulnerability": "VCID-tug1-g6m1-j3f3" }, { "vulnerability": "VCID-v54a-sjgy-b7ca" }, { "vulnerability": "VCID-vb2z-kkev-aues" }, { "vulnerability": "VCID-z5ga-q6zr-3kb5" }, { "vulnerability": "VCID-zdxd-83uy-hbad" }, { "vulnerability": "VCID-zvev-sm5c-suh6" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/matrix-synapse@1.5.0" } ], "aliases": [ "CVE-2019-18835", "GHSA-cppw-2mf8-qpm5", "PYSEC-2019-186" ], "risk_score": null, "exploitability": null, "weighted_severity": null, "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-ng8b-cs3a-cqa7" }, { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/9284?format=api", "vulnerability_id": "VCID-nmup-uep4-b7hw", "summary": "Synapse is an open-source Matrix homeserver. Synapse before version 1.106 allows, by design, unauthenticated remote participants to trigger a download and caching of remote media from a remote homeserver to the local media repository. Such content then also becomes available for download from the local homeserver in an unauthenticated way. The implication is that unauthenticated remote adversaries can use this functionality to plant problematic content into the media repository. Synapse 1.106 introduces a partial mitigation in the form of new endpoints which require authentication for media downloads. The unauthenticated endpoints will be frozen in a future release, closing the attack vector.", "references": [ { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2024-37303", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.00342", "scoring_system": "epss", "scoring_elements": "0.57075", "published_at": "2026-05-30T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2024-37303" }, { "reference_url": "https://github.com/element-hq/synapse/security/advisories/GHSA-gjgr-7834-rhxr", "reference_id": "", "reference_type": "", "scores": [ { "value": "5.3", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N" } ], "url": "https://github.com/element-hq/synapse/security/advisories/GHSA-gjgr-7834-rhxr" }, { "reference_url": "https://github.com/matrix-org/matrix-spec-proposals/pull/3916", "reference_id": "", "reference_type": "", "scores": [ { "value": "5.3", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N" } ], "url": "https://github.com/matrix-org/matrix-spec-proposals/pull/3916" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/43088?format=api", "purl": "pkg:pypi/matrix-synapse@1.106.0", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/matrix-synapse@1.106.0" } ], "aliases": [ "CVE-2024-37303", "GHSA-gjgr-7834-rhxr", "PYSEC-2024-287" ], "risk_score": null, "exploitability": null, "weighted_severity": null, "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-nmup-uep4-b7hw" }, { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/8794?format=api", "vulnerability_id": "VCID-pg5k-2upe-dudk", "summary": "Synapse is a Matrix protocol homeserver written in Python with the Twisted framework. A discovered oEmbed or image URL can bypass the `url_preview_url_blacklist` setting potentially allowing server side request forgery or bypassing network policies. Impact is limited to IP addresses allowed by the `url_preview_ip_range_blacklist` setting (by default this only allows public IPs) and by the limited information returned to the client: 1. For discovered oEmbed URLs, any non-JSON response or a JSON response which includes non-oEmbed information is discarded. 2. For discovered image URLs, any non-image response is discarded. Systems which have URL preview disabled (via the `url_preview_enabled` setting) or have not configured a `url_preview_url_blacklist` are not affected. This issue has been addressed in version 1.85.0. Users are advised to upgrade. User unable to upgrade may also disable URL previews.", "references": [ { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2023-32683", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.00268", "scoring_system": "epss", "scoring_elements": "0.50467", "published_at": "2026-05-30T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2023-32683" }, { "reference_url": "https://github.com/matrix-org/synapse", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/matrix-org/synapse" }, { "reference_url": "https://github.com/matrix-org/synapse/pull/15601", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/matrix-org/synapse/pull/15601" }, { "reference_url": "https://github.com/matrix-org/synapse/releases/tag/v1.85.0", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/matrix-org/synapse/releases/tag/v1.85.0" }, { "reference_url": "https://github.com/matrix-org/synapse/security/advisories/GHSA-98px-6486-j7qc", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/matrix-org/synapse/security/advisories/GHSA-98px-6486-j7qc" }, { "reference_url": "https://github.com/pypa/advisory-database/tree/main/vulns/matrix-synapse/PYSEC-2023-85.yaml", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/pypa/advisory-database/tree/main/vulns/matrix-synapse/PYSEC-2023-85.yaml" }, { "reference_url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/X6DH5A5YEB5LRIPP32OUW25FCGZFCZU2", "reference_id": "", "reference_type": "", "scores": [], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/X6DH5A5YEB5LRIPP32OUW25FCGZFCZU2" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2023-32683", "reference_id": "CVE-2023-32683", "reference_type": "", "scores": [], "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-32683" }, { "reference_url": "https://github.com/advisories/GHSA-98px-6486-j7qc", "reference_id": "GHSA-98px-6486-j7qc", "reference_type": "", "scores": [], "url": "https://github.com/advisories/GHSA-98px-6486-j7qc" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/32835?format=api", "purl": "pkg:pypi/matrix-synapse@1.85.0", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-5fgp-pcfw-33gk" }, { "vulnerability": "VCID-9wuf-2wxr-z7a8" }, { "vulnerability": "VCID-g7rm-55dm-tybk" }, { "vulnerability": "VCID-nmup-uep4-b7hw" }, { "vulnerability": "VCID-ry9q-34p9-auh6" }, { "vulnerability": "VCID-tug1-g6m1-j3f3" }, { "vulnerability": "VCID-x5jc-ezaq-xudd" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/matrix-synapse@1.85.0" } ], "aliases": [ "CVE-2023-32683", "GHSA-98px-6486-j7qc", "PYSEC-2023-85" ], "risk_score": null, "exploitability": null, "weighted_severity": null, "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-pg5k-2upe-dudk" }, { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/9104?format=api", "vulnerability_id": "VCID-ry9q-34p9-auh6", "summary": "Synapse is an open-source Matrix homeserver. A remote Matrix user with malicious intent, sharing a room with Synapse instances before 1.105.1, can dispatch specially crafted events to exploit a weakness in the V2 state resolution algorithm. This can induce high CPU consumption and accumulate excessive data in the database of such instances, resulting in a denial of service. Servers in private federations, or those that do not federate, are not affected. Server administrators should upgrade to 1.105.1 or later. Some workarounds are available. One can ban the malicious users or ACL block servers from the rooms and/or leave the room and purge the room using the admin API.", "references": [ { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2024-31208", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.03089", "scoring_system": "epss", "scoring_elements": "0.87015", "published_at": "2026-05-30T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2024-31208" }, { "reference_url": "https://github.com/element-hq/synapse", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/element-hq/synapse" }, { "reference_url": "https://github.com/element-hq/synapse/commit/55b0aa847a61774b6a3acdc4b177a20dc019f01a", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/element-hq/synapse/commit/55b0aa847a61774b6a3acdc4b177a20dc019f01a" }, { "reference_url": "https://github.com/element-hq/synapse/releases/tag/v1.105.1", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/element-hq/synapse/releases/tag/v1.105.1" }, { "reference_url": "https://github.com/element-hq/synapse/security/advisories/GHSA-3h7q-rfh9-xm4v", "reference_id": "", "reference_type": "", "scores": [ { "value": "MODERATE", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" } ], "url": "https://github.com/element-hq/synapse/security/advisories/GHSA-3h7q-rfh9-xm4v" }, { "reference_url": "https://github.com/pypa/advisory-database/tree/main/vulns/matrix-synapse/PYSEC-2024-50.yaml", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/pypa/advisory-database/tree/main/vulns/matrix-synapse/PYSEC-2024-50.yaml" }, { "reference_url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/R6FCCO4ODTZ3FDS7TMW76PKOSEL2TQVB", "reference_id": "", "reference_type": "", "scores": [], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/R6FCCO4ODTZ3FDS7TMW76PKOSEL2TQVB" }, { "reference_url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RR53FNHV446CB37TP45GZ6F6HZLZCK3K", "reference_id": "", "reference_type": "", "scores": [], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RR53FNHV446CB37TP45GZ6F6HZLZCK3K" }, { "reference_url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VSF4NJJSTSQRJQ47PLYYSCFYKJBP7DET", "reference_id": "", "reference_type": "", "scores": [], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VSF4NJJSTSQRJQ47PLYYSCFYKJBP7DET" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2024-31208", "reference_id": "CVE-2024-31208", "reference_type": "", "scores": [], "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-31208" }, { "reference_url": "https://github.com/advisories/GHSA-3h7q-rfh9-xm4v", "reference_id": "GHSA-3h7q-rfh9-xm4v", "reference_type": "", "scores": [ { "value": "MODERATE", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" } ], "url": "https://github.com/advisories/GHSA-3h7q-rfh9-xm4v" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/39820?format=api", "purl": "pkg:pypi/matrix-synapse@1.105.1", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-g7rm-55dm-tybk" }, { "vulnerability": "VCID-nmup-uep4-b7hw" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/matrix-synapse@1.105.1" } ], "aliases": [ "CVE-2024-31208", "GHSA-3h7q-rfh9-xm4v", "PYSEC-2024-50" ], "risk_score": null, "exploitability": null, "weighted_severity": null, "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-ry9q-34p9-auh6" }, { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/4027?format=api", "vulnerability_id": "VCID-sh81-25ty-4bgn", "summary": "cross-site scripting", "references": [ { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2020-26891", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.00439", "scoring_system": "epss", "scoring_elements": "0.63447", "published_at": "2026-05-30T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2020-26891" }, { "reference_url": "https://github.com/matrix-org/synapse/pull/8444", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/matrix-org/synapse/pull/8444" }, { "reference_url": "https://github.com/matrix-org/synapse/releases", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/matrix-org/synapse/releases" }, { "reference_url": "https://github.com/matrix-org/synapse/releases/tag/v1.21.2", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/matrix-org/synapse/releases/tag/v1.21.2" }, { "reference_url": "https://github.com/matrix-org/synapse/security/advisories/GHSA-3x8c-fmpc-5rmq", "reference_id": "", "reference_type": "", "scores": [ { "value": "MODERATE", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" } ], "url": "https://github.com/matrix-org/synapse/security/advisories/GHSA-3x8c-fmpc-5rmq" }, { "reference_url": "https://github.com/pypa/advisory-database/tree/main/vulns/matrix-synapse/PYSEC-2020-238.yaml", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/pypa/advisory-database/tree/main/vulns/matrix-synapse/PYSEC-2020-238.yaml" }, { "reference_url": "https://matrix.org/blog/2020/10/15/synapse-1-21-2-released-and-security-advisory", "reference_id": "", "reference_type": "", "scores": [], "url": "https://matrix.org/blog/2020/10/15/synapse-1-21-2-released-and-security-advisory" }, { "reference_url": "https://security.archlinux.org/ASA-202011-4", "reference_id": "ASA-202011-4", "reference_type": "", "scores": [], "url": "https://security.archlinux.org/ASA-202011-4" }, { "reference_url": "https://security.archlinux.org/AVG-1252", "reference_id": "AVG-1252", "reference_type": "", "scores": [ { "value": "High", "scoring_system": "archlinux", "scoring_elements": "" } ], "url": "https://security.archlinux.org/AVG-1252" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2020-26891", "reference_id": "CVE-2020-26891", "reference_type": "", "scores": [], "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-26891" }, { "reference_url": "https://github.com/advisories/GHSA-3x8c-fmpc-5rmq", "reference_id": "GHSA-3x8c-fmpc-5rmq", "reference_type": "", "scores": [ { "value": "MODERATE", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" } ], "url": "https://github.com/advisories/GHSA-3x8c-fmpc-5rmq" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/17423?format=api", "purl": "pkg:pypi/matrix-synapse@1.21.0", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-1cxk-wn3b-jycq" }, { "vulnerability": "VCID-3stp-shy4-dudr" }, { "vulnerability": "VCID-3tbz-jcb2-4fdn" }, { "vulnerability": "VCID-43wz-3reu-s3ep" }, { "vulnerability": "VCID-5b91-nm22-5uh4" }, { "vulnerability": "VCID-5fgp-pcfw-33gk" }, { "vulnerability": "VCID-66cm-6sgb-bqft" }, { "vulnerability": "VCID-arh5-tp1n-nubq" }, { "vulnerability": "VCID-cff6-n5gz-jfhe" }, { "vulnerability": "VCID-fmqv-a8qr-gqfz" }, { "vulnerability": "VCID-g7rm-55dm-tybk" }, { "vulnerability": "VCID-jg9y-53m4-5bb6" }, { "vulnerability": "VCID-k689-rvyd-e3hp" }, { "vulnerability": "VCID-mmge-uj6j-k3c2" }, { "vulnerability": "VCID-nmup-uep4-b7hw" }, { "vulnerability": "VCID-pg5k-2upe-dudk" }, { "vulnerability": "VCID-ry9q-34p9-auh6" }, { "vulnerability": "VCID-sqmn-ffjr-s7bc" }, { "vulnerability": "VCID-tug1-g6m1-j3f3" }, { "vulnerability": "VCID-v54a-sjgy-b7ca" }, { "vulnerability": "VCID-vb2z-kkev-aues" }, { "vulnerability": "VCID-z5ga-q6zr-3kb5" }, { "vulnerability": "VCID-zvev-sm5c-suh6" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/matrix-synapse@1.21.0" } ], "aliases": [ "CVE-2020-26891", "GHSA-3x8c-fmpc-5rmq", "PYSEC-2020-238" ], "risk_score": null, "exploitability": null, "weighted_severity": null, "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-sh81-25ty-4bgn" }, { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/8932?format=api", "vulnerability_id": "VCID-tug1-g6m1-j3f3", "summary": "Synapse is an open-source Matrix homeserver Prior to versions 1.95.1 and 1.96.0rc1, cached device information of remote users can be queried from Synapse. This can be used to enumerate the remote users known to a homeserver. System administrators are encouraged to upgrade to Synapse 1.95.1 or 1.96.0rc1 to receive a patch. As a workaround, the `federation_domain_whitelist` can be used to limit federation traffic with a homeserver.", "references": [ { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2023-43796", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.00265", "scoring_system": "epss", "scoring_elements": "0.50135", "published_at": "2026-05-30T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2023-43796" }, { "reference_url": "https://github.com/matrix-org/synapse", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/matrix-org/synapse" }, { "reference_url": "https://github.com/matrix-org/synapse/commit/daec55e1fe120c564240c5386e77941372bf458f", "reference_id": "", "reference_type": "", "scores": [ { "value": "5.3", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N" } ], "url": "https://github.com/matrix-org/synapse/commit/daec55e1fe120c564240c5386e77941372bf458f" }, { "reference_url": "https://github.com/matrix-org/synapse/security/advisories/GHSA-mp92-3jfm-3575", "reference_id": "", "reference_type": "", "scores": [ { "value": "5.3", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N" } ], "url": "https://github.com/matrix-org/synapse/security/advisories/GHSA-mp92-3jfm-3575" }, { "reference_url": "https://github.com/pypa/advisory-database/tree/main/vulns/matrix-synapse/PYSEC-2023-230.yaml", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/pypa/advisory-database/tree/main/vulns/matrix-synapse/PYSEC-2023-230.yaml" }, { "reference_url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2IDEEZMFJBDLTFHQUTZRJJNCOZGQ2ZVS", "reference_id": "", "reference_type": "", "scores": [], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2IDEEZMFJBDLTFHQUTZRJJNCOZGQ2ZVS" }, { "reference_url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VH3RNC5ZPQZ4OKPSL4E6BBJSZOQLGDEY", "reference_id": "", "reference_type": "", "scores": [], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VH3RNC5ZPQZ4OKPSL4E6BBJSZOQLGDEY" }, { "reference_url": "https://security.gentoo.org/glsa/202401-12", "reference_id": "", "reference_type": "", "scores": [], "url": "https://security.gentoo.org/glsa/202401-12" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2023-43796", "reference_id": "CVE-2023-43796", "reference_type": "", "scores": [], "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-43796" }, { "reference_url": "https://github.com/advisories/GHSA-mp92-3jfm-3575", "reference_id": "GHSA-mp92-3jfm-3575", "reference_type": "", "scores": [], "url": "https://github.com/advisories/GHSA-mp92-3jfm-3575" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/36633?format=api", "purl": "pkg:pypi/matrix-synapse@1.95.1", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-g7rm-55dm-tybk" }, { "vulnerability": "VCID-nmup-uep4-b7hw" }, { "vulnerability": "VCID-ry9q-34p9-auh6" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/matrix-synapse@1.95.1" } ], "aliases": [ "CVE-2023-43796", "GHSA-mp92-3jfm-3575", "PYSEC-2023-230" ], "risk_score": null, "exploitability": null, "weighted_severity": null, "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-tug1-g6m1-j3f3" }, { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/8793?format=api", "vulnerability_id": "VCID-v54a-sjgy-b7ca", "summary": "Synapse is a Matrix protocol homeserver written in Python with the Twisted framework. In affected versions it may be possible for a deactivated user to login when using uncommon configurations. This only applies if any of the following are true: 1. JSON Web Tokens are enabled for login via the `jwt_config.enabled` configuration setting. 2. The local password database is enabled via the `password_config.enabled` and `password_config.localdb_enabled` configuration settings *and* a user's password is updated via an admin API after a user is deactivated. Note that the local password database is enabled by default, but it is uncommon to set a user's password after they've been deactivated. Installations that are configured to only allow login via Single Sign-On (SSO) via CAS, SAML or OpenID Connect (OIDC); or via an external password provider (e.g. LDAP) are not affected. If not using JSON Web Tokens, ensure that deactivated users do not have a password set. This issue has been addressed in version 1.85.0. Users are advised to upgrade.", "references": [ { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2023-32682", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.00975", "scoring_system": "epss", "scoring_elements": "0.76996", "published_at": "2026-05-30T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2023-32682" }, { "reference_url": "https://github.com/matrix-org/synapse", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/matrix-org/synapse" }, { "reference_url": "https://github.com/matrix-org/synapse/issues/12274", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/matrix-org/synapse/issues/12274" }, { "reference_url": "https://github.com/matrix-org/synapse/pull/15624", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/matrix-org/synapse/pull/15624" }, { "reference_url": "https://github.com/matrix-org/synapse/pull/15634", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/matrix-org/synapse/pull/15634" }, { "reference_url": "https://github.com/matrix-org/synapse/releases/tag/v1.85.0", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/matrix-org/synapse/releases/tag/v1.85.0" }, { "reference_url": "https://github.com/matrix-org/synapse/security/advisories/GHSA-26c5-ppr8-f33p", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/matrix-org/synapse/security/advisories/GHSA-26c5-ppr8-f33p" }, { "reference_url": "https://github.com/pypa/advisory-database/tree/main/vulns/matrix-synapse/PYSEC-2023-84.yaml", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/pypa/advisory-database/tree/main/vulns/matrix-synapse/PYSEC-2023-84.yaml" }, { "reference_url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/X6DH5A5YEB5LRIPP32OUW25FCGZFCZU2", "reference_id": "", "reference_type": "", "scores": [], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/X6DH5A5YEB5LRIPP32OUW25FCGZFCZU2" }, { "reference_url": "https://matrix-org.github.io/synapse/latest/admin_api/user_admin_api.html#create-or-modify-account", "reference_id": "", "reference_type": "", "scores": [], "url": "https://matrix-org.github.io/synapse/latest/admin_api/user_admin_api.html#create-or-modify-account" }, { "reference_url": "https://matrix-org.github.io/synapse/latest/jwt.html", "reference_id": "", "reference_type": "", "scores": [], "url": "https://matrix-org.github.io/synapse/latest/jwt.html" }, { "reference_url": "https://matrix-org.github.io/synapse/latest/usage/configuration/config_documentation.html#password_config", "reference_id": "", "reference_type": "", "scores": [], "url": "https://matrix-org.github.io/synapse/latest/usage/configuration/config_documentation.html#password_config" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2023-32682", "reference_id": "CVE-2023-32682", "reference_type": "", "scores": [], "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-32682" }, { "reference_url": "https://github.com/advisories/GHSA-26c5-ppr8-f33p", "reference_id": "GHSA-26c5-ppr8-f33p", "reference_type": "", "scores": [], "url": "https://github.com/advisories/GHSA-26c5-ppr8-f33p" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/32835?format=api", "purl": "pkg:pypi/matrix-synapse@1.85.0", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-5fgp-pcfw-33gk" }, { "vulnerability": "VCID-9wuf-2wxr-z7a8" }, { "vulnerability": "VCID-g7rm-55dm-tybk" }, { "vulnerability": "VCID-nmup-uep4-b7hw" }, { "vulnerability": "VCID-ry9q-34p9-auh6" }, { "vulnerability": "VCID-tug1-g6m1-j3f3" }, { "vulnerability": "VCID-x5jc-ezaq-xudd" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/matrix-synapse@1.85.0" } ], "aliases": [ "CVE-2023-32682", "GHSA-26c5-ppr8-f33p", "PYSEC-2023-84" ], "risk_score": null, "exploitability": null, "weighted_severity": null, "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-v54a-sjgy-b7ca" }, { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/8044?format=api", "vulnerability_id": "VCID-vb2z-kkev-aues", "summary": "Synapse is a Matrix reference homeserver written in python (pypi package matrix-synapse). Matrix is an ecosystem for open federated Instant Messaging and VoIP. In Synapse before version 1.25.0, requests to user provided domains were not restricted to external IP addresses when calculating the key validity for third-party invite events and sending push notifications. This could cause Synapse to make requests to internal infrastructure. The type of request was not controlled by the user, although limited modification of request bodies was possible. For the most thorough protection server administrators should remove the deprecated `federation_ip_range_blacklist` from their settings after upgrading to Synapse v1.25.0 which will result in Synapse using the improved default IP address restrictions. See the new `ip_range_blacklist` and `ip_range_whitelist` settings if more specific control is necessary.", "references": [ { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2021-21273", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.00322", "scoring_system": "epss", "scoring_elements": "0.55523", "published_at": "2026-05-30T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2021-21273" }, { "reference_url": "https://github.com/matrix-org/synapse/commit/30fba6210834a4ecd91badf0c8f3eb278b72e746", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/matrix-org/synapse/commit/30fba6210834a4ecd91badf0c8f3eb278b72e746" }, { "reference_url": "https://github.com/matrix-org/synapse/pull/8821", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/matrix-org/synapse/pull/8821" }, { "reference_url": "https://github.com/matrix-org/synapse/releases/tag/v1.25.0", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/matrix-org/synapse/releases/tag/v1.25.0" }, { "reference_url": "https://github.com/matrix-org/synapse/security/advisories/GHSA-v936-j8gp-9q3p", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/matrix-org/synapse/security/advisories/GHSA-v936-j8gp-9q3p" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/18960?format=api", "purl": "pkg:pypi/matrix-synapse@1.25.0", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-1cxk-wn3b-jycq" }, { "vulnerability": "VCID-3stp-shy4-dudr" }, { "vulnerability": "VCID-3tbz-jcb2-4fdn" }, { "vulnerability": "VCID-43wz-3reu-s3ep" }, { "vulnerability": "VCID-5b91-nm22-5uh4" }, { "vulnerability": "VCID-5fgp-pcfw-33gk" }, { "vulnerability": "VCID-66cm-6sgb-bqft" }, { "vulnerability": "VCID-arh5-tp1n-nubq" }, { "vulnerability": "VCID-fmqv-a8qr-gqfz" }, { "vulnerability": "VCID-g7rm-55dm-tybk" }, { "vulnerability": "VCID-jg9y-53m4-5bb6" }, { "vulnerability": "VCID-k689-rvyd-e3hp" }, { "vulnerability": "VCID-mmge-uj6j-k3c2" }, { "vulnerability": "VCID-nmup-uep4-b7hw" }, { "vulnerability": "VCID-pg5k-2upe-dudk" }, { "vulnerability": "VCID-ry9q-34p9-auh6" }, { "vulnerability": "VCID-tug1-g6m1-j3f3" }, { "vulnerability": "VCID-v54a-sjgy-b7ca" }, { "vulnerability": "VCID-z5ga-q6zr-3kb5" }, { "vulnerability": "VCID-zvev-sm5c-suh6" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/matrix-synapse@1.25.0" } ], "aliases": [ "CVE-2021-21273", "GHSA-v936-j8gp-9q3p", "PYSEC-2021-131" ], "risk_score": null, "exploitability": null, "weighted_severity": null, "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-vb2z-kkev-aues" }, { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/8787?format=api", "vulnerability_id": "VCID-z5ga-q6zr-3kb5", "summary": "Synapse is an open-source Matrix homeserver written and maintained by the Matrix.org Foundation. A malicious user on a Synapse homeserver X with permission to create certain state events can disable outbound federation from X to an arbitrary homeserver Y. Synapse instances with federation disabled are not affected. In versions of Synapse up to and including 1.73, Synapse did not limit the size of `invite_room_state`, meaning that it was possible to create an arbitrarily large invite event. Synapse 1.74 refuses to create oversized `invite_room_state` fields. Server operators should upgrade to Synapse 1.74 or newer urgently.", "references": [ { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2023-32323", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.00135", "scoring_system": "epss", "scoring_elements": "0.33116", "published_at": "2026-05-30T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2023-32323" }, { "reference_url": "https://github.com/matrix-org/synapse", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/matrix-org/synapse" }, { "reference_url": "https://github.com/matrix-org/synapse/issues/14492", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/matrix-org/synapse/issues/14492" }, { "reference_url": "https://github.com/matrix-org/synapse/pull/14642", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/matrix-org/synapse/pull/14642" }, { "reference_url": "https://github.com/matrix-org/synapse/security/advisories/GHSA-f3wc-3vxv-xmvr", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/matrix-org/synapse/security/advisories/GHSA-f3wc-3vxv-xmvr" }, { "reference_url": "https://github.com/pypa/advisory-database/tree/main/vulns/matrix-synapse/PYSEC-2023-67.yaml", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/pypa/advisory-database/tree/main/vulns/matrix-synapse/PYSEC-2023-67.yaml" }, { "reference_url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UJIJRP5ZH6B3KGFLHCAKR2IX2Y4Z25QD", "reference_id": "", "reference_type": "", "scores": [], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UJIJRP5ZH6B3KGFLHCAKR2IX2Y4Z25QD" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2023-32323", "reference_id": "CVE-2023-32323", "reference_type": "", "scores": [], "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-32323" }, { "reference_url": "https://github.com/advisories/GHSA-f3wc-3vxv-xmvr", "reference_id": "GHSA-f3wc-3vxv-xmvr", "reference_type": "", "scores": [], "url": "https://github.com/advisories/GHSA-f3wc-3vxv-xmvr" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/32734?format=api", "purl": "pkg:pypi/matrix-synapse@1.74.0", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-5fgp-pcfw-33gk" }, { "vulnerability": "VCID-9wuf-2wxr-z7a8" }, { "vulnerability": "VCID-g7rm-55dm-tybk" }, { "vulnerability": "VCID-nmup-uep4-b7hw" }, { "vulnerability": "VCID-pg5k-2upe-dudk" }, { "vulnerability": "VCID-ry9q-34p9-auh6" }, { "vulnerability": "VCID-tug1-g6m1-j3f3" }, { "vulnerability": "VCID-v54a-sjgy-b7ca" }, { "vulnerability": "VCID-x5jc-ezaq-xudd" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/matrix-synapse@1.74.0" } ], "aliases": [ "CVE-2023-32323", "GHSA-f3wc-3vxv-xmvr", "PYSEC-2023-67" ], "risk_score": null, "exploitability": null, "weighted_severity": null, "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-z5ga-q6zr-3kb5" }, { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/3992?format=api", "vulnerability_id": "VCID-zdxd-83uy-hbad", "summary": "denial of service", "references": [ { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2020-26890", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.00572", "scoring_system": "epss", "scoring_elements": "0.69005", "published_at": "2026-05-30T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2020-26890" }, { "reference_url": "https://github.com/matrix-org/synapse/security/advisories/GHSA-4mp3-385r-v63f", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/matrix-org/synapse/security/advisories/GHSA-4mp3-385r-v63f" }, { "reference_url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/G7YXMMYQP46PYL664JQUXCA3LPBJU7DQ/", "reference_id": "", "reference_type": "", "scores": [], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/G7YXMMYQP46PYL664JQUXCA3LPBJU7DQ/" }, { "reference_url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/U34DPP4ZLOEDUY2ZCWOHQPU5GA5LYNUQ/", "reference_id": "", "reference_type": "", "scores": [], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/U34DPP4ZLOEDUY2ZCWOHQPU5GA5LYNUQ/" }, { "reference_url": "https://security.archlinux.org/ASA-202011-23", "reference_id": "ASA-202011-23", "reference_type": "", "scores": [], "url": "https://security.archlinux.org/ASA-202011-23" }, { "reference_url": "https://security.archlinux.org/AVG-1296", "reference_id": "AVG-1296", "reference_type": "", "scores": [ { "value": "High", "scoring_system": "archlinux", "scoring_elements": "" } ], "url": "https://security.archlinux.org/AVG-1296" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/17418?format=api", "purl": "pkg:pypi/matrix-synapse@1.20.0", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-1cxk-wn3b-jycq" }, { "vulnerability": "VCID-3stp-shy4-dudr" }, { "vulnerability": "VCID-3tbz-jcb2-4fdn" }, { "vulnerability": "VCID-43wz-3reu-s3ep" }, { "vulnerability": "VCID-5b91-nm22-5uh4" }, { "vulnerability": "VCID-5fgp-pcfw-33gk" }, { "vulnerability": "VCID-66cm-6sgb-bqft" }, { "vulnerability": "VCID-arh5-tp1n-nubq" }, { "vulnerability": "VCID-cff6-n5gz-jfhe" }, { "vulnerability": "VCID-fmqv-a8qr-gqfz" }, { "vulnerability": "VCID-g7rm-55dm-tybk" }, { "vulnerability": "VCID-jg9y-53m4-5bb6" }, { "vulnerability": "VCID-k689-rvyd-e3hp" }, { "vulnerability": "VCID-mmge-uj6j-k3c2" }, { "vulnerability": "VCID-nmup-uep4-b7hw" }, { "vulnerability": "VCID-pg5k-2upe-dudk" }, { "vulnerability": "VCID-ry9q-34p9-auh6" }, { "vulnerability": "VCID-sh81-25ty-4bgn" }, { "vulnerability": "VCID-sqmn-ffjr-s7bc" }, { "vulnerability": "VCID-tug1-g6m1-j3f3" }, { "vulnerability": "VCID-v54a-sjgy-b7ca" }, { "vulnerability": "VCID-vb2z-kkev-aues" }, { "vulnerability": "VCID-z5ga-q6zr-3kb5" }, { "vulnerability": "VCID-zvev-sm5c-suh6" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/matrix-synapse@1.20.0" } ], "aliases": [ "CVE-2020-26890", "GHSA-4mp3-385r-v63f", "PYSEC-2020-237" ], "risk_score": null, "exploitability": null, "weighted_severity": null, "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-zdxd-83uy-hbad" }, { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/8076?format=api", "vulnerability_id": "VCID-zvev-sm5c-suh6", "summary": "Synapse is a Matrix reference homeserver written in python (pypi package matrix-synapse). Matrix is an ecosystem for open federated Instant Messaging and VoIP. In Synapse before version 1.28.0 Synapse is missing input validation of some parameters on the endpoints used to confirm third-party identifiers could cause excessive use of disk space and memory leading to resource exhaustion. Note that the groups feature is not part of the Matrix specification and the chosen maximum lengths are arbitrary. Not all clients might abide by them. Refer to referenced GitHub security advisory for additional details including workarounds.", "references": [ { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2021-21393", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.00548", "scoring_system": "epss", "scoring_elements": "0.68204", "published_at": "2026-05-30T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2021-21393" }, { "reference_url": "https://github.com/matrix-org/synapse/pull/9321", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/matrix-org/synapse/pull/9321" }, { "reference_url": "https://github.com/matrix-org/synapse/pull/9393", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/matrix-org/synapse/pull/9393" }, { "reference_url": "https://github.com/matrix-org/synapse/security/advisories/GHSA-jrh7-mhhx-6h88", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/matrix-org/synapse/security/advisories/GHSA-jrh7-mhhx-6h88" }, { "reference_url": "https://pypi.org/project/matrix-synapse/", "reference_id": "", "reference_type": "", "scores": [], "url": "https://pypi.org/project/matrix-synapse/" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/20260?format=api", "purl": "pkg:pypi/matrix-synapse@1.28.0", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-3stp-shy4-dudr" }, { "vulnerability": "VCID-3tbz-jcb2-4fdn" }, { "vulnerability": "VCID-43wz-3reu-s3ep" }, { "vulnerability": "VCID-5fgp-pcfw-33gk" }, { "vulnerability": "VCID-66cm-6sgb-bqft" }, { "vulnerability": "VCID-arh5-tp1n-nubq" }, { "vulnerability": "VCID-g7rm-55dm-tybk" }, { "vulnerability": "VCID-jg9y-53m4-5bb6" }, { "vulnerability": "VCID-mmge-uj6j-k3c2" }, { "vulnerability": "VCID-nmup-uep4-b7hw" }, { "vulnerability": "VCID-pg5k-2upe-dudk" }, { "vulnerability": "VCID-ry9q-34p9-auh6" }, { "vulnerability": "VCID-tug1-g6m1-j3f3" }, { "vulnerability": "VCID-v54a-sjgy-b7ca" }, { "vulnerability": "VCID-z5ga-q6zr-3kb5" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/matrix-synapse@1.28.0" } ], "aliases": [ "CVE-2021-21393", "GHSA-jrh7-mhhx-6h88", "PYSEC-2021-26" ], "risk_score": null, "exploitability": null, "weighted_severity": null, "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-zvev-sm5c-suh6" } ], "fixing_vulnerabilities": [ { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/12687?format=api", "vulnerability_id": "VCID-13kq-f8uw-dyhn", "summary": "Incorrect Default Permissions\nThe `on_get_missing_events` function in `handlers/federation.py` in Matrix Synapse has a security bug in the `get_missing_events` federation API where event visibility rules were not applied correctly.", "references": [ { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2018-12291", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.003", "scoring_system": "epss", "scoring_elements": "0.53549", "published_at": "2026-05-30T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2018-12291" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2018-12291", "reference_id": "CVE-2018-12291", "reference_type": "", "scores": [], "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-12291" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/11867?format=api", "purl": "pkg:pypi/matrix-synapse@0.33.5", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-1cxk-wn3b-jycq" }, { "vulnerability": "VCID-3stp-shy4-dudr" }, { "vulnerability": "VCID-3tbz-jcb2-4fdn" }, { "vulnerability": "VCID-43wz-3reu-s3ep" }, { "vulnerability": "VCID-5b91-nm22-5uh4" }, { "vulnerability": "VCID-5d98-hf1n-17aq" }, { "vulnerability": "VCID-5fgp-pcfw-33gk" }, { "vulnerability": "VCID-66cm-6sgb-bqft" }, { "vulnerability": "VCID-arh5-tp1n-nubq" }, { "vulnerability": "VCID-ary1-cnnt-duhg" }, { "vulnerability": "VCID-cff6-n5gz-jfhe" }, { "vulnerability": "VCID-fmqv-a8qr-gqfz" }, { "vulnerability": "VCID-g7rm-55dm-tybk" }, { "vulnerability": "VCID-jg9y-53m4-5bb6" }, { "vulnerability": "VCID-k689-rvyd-e3hp" }, { "vulnerability": "VCID-mmge-uj6j-k3c2" }, { "vulnerability": "VCID-ng8b-cs3a-cqa7" }, { "vulnerability": "VCID-nmup-uep4-b7hw" }, { "vulnerability": "VCID-pg5k-2upe-dudk" }, { "vulnerability": "VCID-ry9q-34p9-auh6" }, { "vulnerability": "VCID-sh81-25ty-4bgn" }, { "vulnerability": "VCID-tug1-g6m1-j3f3" }, { "vulnerability": "VCID-v54a-sjgy-b7ca" }, { "vulnerability": "VCID-vb2z-kkev-aues" }, { "vulnerability": "VCID-z5ga-q6zr-3kb5" }, { "vulnerability": "VCID-zdxd-83uy-hbad" }, { "vulnerability": "VCID-zvev-sm5c-suh6" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/matrix-synapse@0.33.5" } ], "aliases": [ "CVE-2018-12291" ], "risk_score": null, "exploitability": null, "weighted_severity": null, "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-13kq-f8uw-dyhn" }, { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/12299?format=api", "vulnerability_id": "VCID-2hed-jtcm-g7gb", "summary": "Improper Input Validation\nMatrix Synapse is prone to a denial of service flaw where malicious events injected with depth = 2^63-1 render rooms unusable, related to `federation/federation_base.py` and `handlers/message.py`.", "references": [ { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2018-10657", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.00459", "scoring_system": "epss", "scoring_elements": "0.64326", "published_at": "2026-05-30T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2018-10657" }, { "reference_url": "https://matrix.org/blog/2018/05/01/security-update-synapse-0-28-1/", "reference_id": "", "reference_type": "", "scores": [], "url": "https://matrix.org/blog/2018/05/01/security-update-synapse-0-28-1/" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2018-10657", "reference_id": "CVE-2018-10657", "reference_type": "", "scores": [], "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-10657" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/11867?format=api", "purl": "pkg:pypi/matrix-synapse@0.33.5", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-1cxk-wn3b-jycq" }, { "vulnerability": "VCID-3stp-shy4-dudr" }, { "vulnerability": "VCID-3tbz-jcb2-4fdn" }, { "vulnerability": "VCID-43wz-3reu-s3ep" }, { "vulnerability": "VCID-5b91-nm22-5uh4" }, { "vulnerability": "VCID-5d98-hf1n-17aq" }, { "vulnerability": "VCID-5fgp-pcfw-33gk" }, { "vulnerability": "VCID-66cm-6sgb-bqft" }, { "vulnerability": "VCID-arh5-tp1n-nubq" }, { "vulnerability": "VCID-ary1-cnnt-duhg" }, { "vulnerability": "VCID-cff6-n5gz-jfhe" }, { "vulnerability": "VCID-fmqv-a8qr-gqfz" }, { "vulnerability": "VCID-g7rm-55dm-tybk" }, { "vulnerability": "VCID-jg9y-53m4-5bb6" }, { "vulnerability": "VCID-k689-rvyd-e3hp" }, { "vulnerability": "VCID-mmge-uj6j-k3c2" }, { "vulnerability": "VCID-ng8b-cs3a-cqa7" }, { "vulnerability": "VCID-nmup-uep4-b7hw" }, { "vulnerability": "VCID-pg5k-2upe-dudk" }, { "vulnerability": "VCID-ry9q-34p9-auh6" }, { "vulnerability": "VCID-sh81-25ty-4bgn" }, { "vulnerability": "VCID-tug1-g6m1-j3f3" }, { "vulnerability": "VCID-v54a-sjgy-b7ca" }, { "vulnerability": "VCID-vb2z-kkev-aues" }, { "vulnerability": "VCID-z5ga-q6zr-3kb5" }, { "vulnerability": "VCID-zdxd-83uy-hbad" }, { "vulnerability": "VCID-zvev-sm5c-suh6" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/matrix-synapse@0.33.5" } ], "aliases": [ "CVE-2018-10657" ], "risk_score": null, "exploitability": null, "weighted_severity": null, "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-2hed-jtcm-g7gb" }, { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/12696?format=api", "vulnerability_id": "VCID-7p7x-5wfu-vyd3", "summary": "Incorrect Default Permissions\nUnauthorised users can hijack rooms when there is no `m.room.power_levels` event in force.", "references": [ { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2018-12423", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.00272", "scoring_system": "epss", "scoring_elements": "0.50819", "published_at": "2026-05-30T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2018-12423" }, { "reference_url": "https://matrix.org/blog/2018/06/14/security-update-synapse-0-31-2/", "reference_id": "", "reference_type": "", "scores": [], "url": "https://matrix.org/blog/2018/06/14/security-update-synapse-0-31-2/" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2018-12423", "reference_id": "CVE-2018-12423", "reference_type": "", "scores": [], "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-12423" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/11867?format=api", "purl": "pkg:pypi/matrix-synapse@0.33.5", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-1cxk-wn3b-jycq" }, { "vulnerability": "VCID-3stp-shy4-dudr" }, { "vulnerability": "VCID-3tbz-jcb2-4fdn" }, { "vulnerability": "VCID-43wz-3reu-s3ep" }, { "vulnerability": "VCID-5b91-nm22-5uh4" }, { "vulnerability": "VCID-5d98-hf1n-17aq" }, { "vulnerability": "VCID-5fgp-pcfw-33gk" }, { "vulnerability": "VCID-66cm-6sgb-bqft" }, { "vulnerability": "VCID-arh5-tp1n-nubq" }, { "vulnerability": "VCID-ary1-cnnt-duhg" }, { "vulnerability": "VCID-cff6-n5gz-jfhe" }, { "vulnerability": "VCID-fmqv-a8qr-gqfz" }, { "vulnerability": "VCID-g7rm-55dm-tybk" }, { "vulnerability": "VCID-jg9y-53m4-5bb6" }, { "vulnerability": "VCID-k689-rvyd-e3hp" }, { "vulnerability": "VCID-mmge-uj6j-k3c2" }, { "vulnerability": "VCID-ng8b-cs3a-cqa7" }, { "vulnerability": "VCID-nmup-uep4-b7hw" }, { "vulnerability": "VCID-pg5k-2upe-dudk" }, { "vulnerability": "VCID-ry9q-34p9-auh6" }, { "vulnerability": "VCID-sh81-25ty-4bgn" }, { "vulnerability": "VCID-tug1-g6m1-j3f3" }, { "vulnerability": "VCID-v54a-sjgy-b7ca" }, { "vulnerability": "VCID-vb2z-kkev-aues" }, { "vulnerability": "VCID-z5ga-q6zr-3kb5" }, { "vulnerability": "VCID-zdxd-83uy-hbad" }, { "vulnerability": "VCID-zvev-sm5c-suh6" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/matrix-synapse@0.33.5" } ], "aliases": [ "CVE-2018-12423" ], "risk_score": null, "exploitability": null, "weighted_severity": null, "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-7p7x-5wfu-vyd3" }, { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/12952?format=api", "vulnerability_id": "VCID-n8fr-sbpq-wqby", "summary": "Improper Verification of Cryptographic Signature\nSynapse allows remote attackers to spoof events and possibly have unspecified other impacts by leveraging improper transaction and event signature validation.", "references": [ { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2018-16515", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.00442", "scoring_system": "epss", "scoring_elements": "0.6355", "published_at": "2026-05-30T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2018-16515" }, { "reference_url": "https://matrix.org/blog/2018/09/06/critical-security-update-synapse-0-33-3-1/", "reference_id": "", "reference_type": "", "scores": [], "url": "https://matrix.org/blog/2018/09/06/critical-security-update-synapse-0-33-3-1/" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2018-16515", "reference_id": "CVE-2018-16515", "reference_type": "", "scores": [], "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-16515" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/11867?format=api", "purl": "pkg:pypi/matrix-synapse@0.33.5", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-1cxk-wn3b-jycq" }, { "vulnerability": "VCID-3stp-shy4-dudr" }, { "vulnerability": "VCID-3tbz-jcb2-4fdn" }, { "vulnerability": "VCID-43wz-3reu-s3ep" }, { "vulnerability": "VCID-5b91-nm22-5uh4" }, { "vulnerability": "VCID-5d98-hf1n-17aq" }, { "vulnerability": "VCID-5fgp-pcfw-33gk" }, { "vulnerability": "VCID-66cm-6sgb-bqft" }, { "vulnerability": "VCID-arh5-tp1n-nubq" }, { "vulnerability": "VCID-ary1-cnnt-duhg" }, { "vulnerability": "VCID-cff6-n5gz-jfhe" }, { "vulnerability": "VCID-fmqv-a8qr-gqfz" }, { "vulnerability": "VCID-g7rm-55dm-tybk" }, { "vulnerability": "VCID-jg9y-53m4-5bb6" }, { "vulnerability": "VCID-k689-rvyd-e3hp" }, { "vulnerability": "VCID-mmge-uj6j-k3c2" }, { "vulnerability": "VCID-ng8b-cs3a-cqa7" }, { "vulnerability": "VCID-nmup-uep4-b7hw" }, { "vulnerability": "VCID-pg5k-2upe-dudk" }, { "vulnerability": "VCID-ry9q-34p9-auh6" }, { "vulnerability": "VCID-sh81-25ty-4bgn" }, { "vulnerability": "VCID-tug1-g6m1-j3f3" }, { "vulnerability": "VCID-v54a-sjgy-b7ca" }, { "vulnerability": "VCID-vb2z-kkev-aues" }, { "vulnerability": "VCID-z5ga-q6zr-3kb5" }, { "vulnerability": "VCID-zdxd-83uy-hbad" }, { "vulnerability": "VCID-zvev-sm5c-suh6" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/matrix-synapse@0.33.5" } ], "aliases": [ "CVE-2018-16515" ], "risk_score": null, "exploitability": null, "weighted_severity": null, "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-n8fr-sbpq-wqby" } ], "risk_score": null, "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/matrix-synapse@0.33.5" }