Package Instance
Lookup for vulnerable packages by Package URL.
GET /api/packages/80686?format=api
{ "url": "http://public2.vulnerablecode.io/api/packages/80686?format=api", "purl": "pkg:pypi/matrix-synapse@1.95.0", "type": "pypi", "namespace": "", "name": "matrix-synapse", "version": "1.95.0", "qualifiers": {}, "subpath": "", "is_vulnerable": true, "next_non_vulnerable_version": "1.152.1", "latest_non_vulnerable_version": "1.152.1", "affected_by_vulnerabilities": [ { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/69798?format=api", "vulnerability_id": "VCID-1xwm-33sy-3qfv", "summary": "Synapse is an open source Matrix homeserver implementation. Prior to 1.152.1, in federated rooms, malicious homeservers can craft room events in such a way that prevents Synapse from providing full history to paginating clients. Clients could therefore fail to display room history. This vulnerability is fixed in 1.152.1.", "references": [ { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2026-45076", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.00091", "scoring_system": "epss", "scoring_elements": "0.25975", "published_at": "2026-06-13T12:55:00Z" }, { "value": "0.00091", "scoring_system": "epss", "scoring_elements": "0.25957", "published_at": "2026-06-14T12:55:00Z" }, { "value": "0.00091", "scoring_system": "epss", "scoring_elements": "0.25759", "published_at": "2026-06-11T12:55:00Z" }, { "value": "0.00091", "scoring_system": "epss", "scoring_elements": "0.25959", "published_at": "2026-06-12T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-45076" }, { "reference_url": "https://github.com/element-hq/synapse", "reference_id": "", "reference_type": "", "scores": [ { "value": "6.9", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/element-hq/synapse" }, { "reference_url": "https://github.com/pypa/advisory-database/tree/main/vulns/matrix-synapse/PYSEC-2026-194.yaml", "reference_id": "", "reference_type": "", "scores": [ { "value": "6.9", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/pypa/advisory-database/tree/main/vulns/matrix-synapse/PYSEC-2026-194.yaml" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-45076", "reference_id": "", "reference_type": "", "scores": [ { "value": "6.9", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-45076" }, { "reference_url": "https://github.com/advisories/GHSA-6qf2-7x63-mm6v", "reference_id": "GHSA-6qf2-7x63-mm6v", "reference_type": "", "scores": [ { "value": "MODERATE", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" } ], "url": "https://github.com/advisories/GHSA-6qf2-7x63-mm6v" }, { "reference_url": "https://github.com/element-hq/synapse/security/advisories/GHSA-6qf2-7x63-mm6v", "reference_id": "GHSA-6qf2-7x63-mm6v", "reference_type": "", "scores": [ { "value": "2.7", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L" }, { "value": "MODERATE", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" }, { "value": "5.1", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N" }, { "value": "6.9", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" }, { "value": "Track", "scoring_system": "ssvc", "scoring_elements": "SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-06-02T14:51:22Z/" } ], "url": "https://github.com/element-hq/synapse/security/advisories/GHSA-6qf2-7x63-mm6v" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/93940?format=api", "purl": "pkg:pypi/matrix-synapse@1.152.1", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/matrix-synapse@1.152.1" } ], "aliases": [ "CVE-2026-45076", "CVE-2026-45076,", "GHSA-6qf2-7x63-mm6v", "PYSEC-2026-194" ], "risk_score": 3.1, "exploitability": "0.5", "weighted_severity": "6.2", "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-1xwm-33sy-3qfv" }, { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/43197?format=api", "vulnerability_id": "VCID-2ctw-4fy5-4ufd", "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": "0.0419", "scoring_system": "epss", "scoring_elements": "0.8897", "published_at": "2026-06-11T12:55:00Z" }, { "value": "0.0419", "scoring_system": "epss", "scoring_elements": "0.89013", "published_at": "2026-06-14T12:55:00Z" }, { "value": "0.0419", "scoring_system": "epss", "scoring_elements": "0.89015", "published_at": "2026-06-13T12:55:00Z" }, { "value": "0.0419", "scoring_system": "epss", "scoring_elements": "0.89008", "published_at": "2026-06-12T12:55:00Z" } ], "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": [ { "value": "6.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/element-hq/synapse" }, { "reference_url": "https://github.com/pypa/advisory-database/tree/main/vulns/matrix-synapse/PYSEC-2024-50.yaml", "reference_id": "", "reference_type": "", "scores": [ { "value": "6.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "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": [ { "value": "6.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "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": [ { "value": "6.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "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": [ { "value": "6.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VSF4NJJSTSQRJQ47PLYYSCFYKJBP7DET" }, { "reference_url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1069763", "reference_id": "1069763", "reference_type": "", "scores": [], "url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1069763" }, { "reference_url": "https://github.com/element-hq/synapse/commit/55b0aa847a61774b6a3acdc4b177a20dc019f01a", "reference_id": "55b0aa847a61774b6a3acdc4b177a20dc019f01a", "reference_type": "", "scores": [ { "value": "6.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" }, { "value": "Track", "scoring_system": "ssvc", "scoring_elements": "SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-04-23T19:13:09Z/" } ], "url": "https://github.com/element-hq/synapse/commit/55b0aa847a61774b6a3acdc4b177a20dc019f01a" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2024-31208", "reference_id": "CVE-2024-31208", "reference_type": "", "scores": [ { "value": "6.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "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" }, { "reference_url": "https://github.com/element-hq/synapse/security/advisories/GHSA-3h7q-rfh9-xm4v", "reference_id": "GHSA-3h7q-rfh9-xm4v", "reference_type": "", "scores": [ { "value": "6.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H" }, { "value": "MODERATE", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" }, { "value": "Track", "scoring_system": "ssvc", "scoring_elements": "SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-04-23T19:13:09Z/" } ], "url": "https://github.com/element-hq/synapse/security/advisories/GHSA-3h7q-rfh9-xm4v" }, { "reference_url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/R6FCCO4ODTZ3FDS7TMW76PKOSEL2TQVB/", "reference_id": "R6FCCO4ODTZ3FDS7TMW76PKOSEL2TQVB", "reference_type": "", "scores": [ { "value": "6.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H" }, { "value": "Track", "scoring_system": "ssvc", "scoring_elements": "SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-04-23T19:13:09Z/" } ], "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": "RR53FNHV446CB37TP45GZ6F6HZLZCK3K", "reference_type": "", "scores": [ { "value": "6.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H" }, { "value": "Track", "scoring_system": "ssvc", "scoring_elements": "SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-04-23T19:13:09Z/" } ], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RR53FNHV446CB37TP45GZ6F6HZLZCK3K/" }, { "reference_url": "https://usn.ubuntu.com/7444-1/", "reference_id": "USN-7444-1", "reference_type": "", "scores": [], "url": "https://usn.ubuntu.com/7444-1/" }, { "reference_url": "https://github.com/element-hq/synapse/releases/tag/v1.105.1", "reference_id": "v1.105.1", "reference_type": "", "scores": [ { "value": "6.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" }, { "value": "Track", "scoring_system": "ssvc", "scoring_elements": "SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-04-23T19:13:09Z/" } ], "url": "https://github.com/element-hq/synapse/releases/tag/v1.105.1" }, { "reference_url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VSF4NJJSTSQRJQ47PLYYSCFYKJBP7DET/", "reference_id": "VSF4NJJSTSQRJQ47PLYYSCFYKJBP7DET", "reference_type": "", "scores": [ { "value": "6.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H" }, { "value": "Track", "scoring_system": "ssvc", "scoring_elements": "SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-04-23T19:13:09Z/" } ], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VSF4NJJSTSQRJQ47PLYYSCFYKJBP7DET/" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/30721?format=api", "purl": "pkg:pypi/matrix-synapse@1.105.1", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-1xwm-33sy-3qfv" }, { "vulnerability": "VCID-3ngy-dt6j-tuef" }, { "vulnerability": "VCID-7v7h-zrjj-pkh3" }, { "vulnerability": "VCID-c1vt-9j6a-b7cr" }, { "vulnerability": "VCID-hqwh-2un3-bqd8" }, { "vulnerability": "VCID-n8mv-4upg-hfa3" }, { "vulnerability": "VCID-rcdd-qkxt-nuez" }, { "vulnerability": "VCID-s1jf-x5ug-jqcq" }, { "vulnerability": "VCID-y6j7-eetd-pkfh" } ], "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": 3.1, "exploitability": "0.5", "weighted_severity": "6.2", "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-2ctw-4fy5-4ufd" }, { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/90078?format=api", "vulnerability_id": "VCID-3ngy-dt6j-tuef", "summary": "Synapse is an open source Matrix homeserver implementation. A malicious server can craft events which, when received, prevent Synapse version up to 1.127.0 from federating with other servers. The vulnerability has been exploited in the wild and has been fixed in Synapse v1.127.1. No known workarounds are available.", "references": [ { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2025-30355", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.13201", "scoring_system": "epss", "scoring_elements": "0.94296", "published_at": "2026-06-11T12:55:00Z" }, { "value": "0.13201", "scoring_system": "epss", "scoring_elements": "0.94323", "published_at": "2026-06-14T12:55:00Z" }, { "value": "0.13201", "scoring_system": "epss", "scoring_elements": "0.94317", "published_at": "2026-06-12T12:55:00Z" }, { "value": "0.13201", "scoring_system": "epss", "scoring_elements": "0.94321", "published_at": "2026-06-13T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2025-30355" }, { "reference_url": "https://github.com/element-hq/synapse", "reference_id": "", "reference_type": "", "scores": [ { "value": "7.1", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/element-hq/synapse" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2025-30355", "reference_id": "", "reference_type": "", "scores": [ { "value": "7.1", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-30355" }, { "reference_url": "https://github.com/element-hq/synapse/commit/2277df2a1eb685f85040ef98fa21d41aa4cdd389", "reference_id": "2277df2a1eb685f85040ef98fa21d41aa4cdd389", "reference_type": "", "scores": [ { "value": "7.1", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" }, { "value": "Track", "scoring_system": "ssvc", "scoring_elements": "SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-03-27T13:47:41Z/" } ], "url": "https://github.com/element-hq/synapse/commit/2277df2a1eb685f85040ef98fa21d41aa4cdd389" }, { "reference_url": "https://github.com/advisories/GHSA-v56r-hwv5-mxg6", "reference_id": "GHSA-v56r-hwv5-mxg6", "reference_type": "", "scores": [ { "value": "HIGH", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" } ], "url": "https://github.com/advisories/GHSA-v56r-hwv5-mxg6" }, { "reference_url": "https://github.com/element-hq/synapse/security/advisories/GHSA-v56r-hwv5-mxg6", "reference_id": "GHSA-v56r-hwv5-mxg6", "reference_type": "", "scores": [ { "value": "7.1", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H" }, { "value": "HIGH", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" }, { "value": "Track", "scoring_system": "ssvc", "scoring_elements": "SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-03-27T13:47:41Z/" } ], "url": "https://github.com/element-hq/synapse/security/advisories/GHSA-v56r-hwv5-mxg6" }, { "reference_url": "https://github.com/element-hq/synapse/releases/tag/v1.127.1", "reference_id": "v1.127.1", "reference_type": "", "scores": [ { "value": "7.1", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" }, { "value": "Track", "scoring_system": "ssvc", "scoring_elements": "SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-03-27T13:47:41Z/" } ], "url": "https://github.com/element-hq/synapse/releases/tag/v1.127.1" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/93875?format=api", "purl": "pkg:pypi/matrix-synapse@1.127.1", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-1xwm-33sy-3qfv" }, { "vulnerability": "VCID-n8mv-4upg-hfa3" }, { "vulnerability": "VCID-y6j7-eetd-pkfh" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/matrix-synapse@1.127.1" } ], "aliases": [ "CVE-2025-30355", "GHSA-v56r-hwv5-mxg6" ], "risk_score": 4.0, "exploitability": "0.5", "weighted_severity": "8.0", "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-3ngy-dt6j-tuef" }, { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/45042?format=api", "vulnerability_id": "VCID-7v7h-zrjj-pkh3", "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": "0.69089", "published_at": "2026-06-12T12:55:00Z" }, { "value": "0.00568", "scoring_system": "epss", "scoring_elements": "0.69096", "published_at": "2026-06-14T12:55:00Z" }, { "value": "0.00568", "scoring_system": "epss", "scoring_elements": "0.68997", "published_at": "2026-06-11T12:55:00Z" }, { "value": "0.00568", "scoring_system": "epss", "scoring_elements": "0.69101", "published_at": "2026-06-13T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2024-37302" }, { "reference_url": "https://github.com/element-hq/synapse", "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" }, { "value": "8.7", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/element-hq/synapse" }, { "reference_url": "https://github.com/pypa/advisory-database/tree/main/vulns/matrix-synapse/PYSEC-2024-286.yaml", "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" }, { "value": "8.7", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/pypa/advisory-database/tree/main/vulns/matrix-synapse/PYSEC-2024-286.yaml" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2024-37302", "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" }, { "value": "8.7", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-37302" }, { "reference_url": "https://github.com/advisories/GHSA-4mhg-xv73-xq2x", "reference_id": "GHSA-4mhg-xv73-xq2x", "reference_type": "", "scores": [ { "value": "HIGH", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" } ], "url": "https://github.com/advisories/GHSA-4mhg-xv73-xq2x" }, { "reference_url": "https://github.com/element-hq/synapse/security/advisories/GHSA-4mhg-xv73-xq2x", "reference_id": "GHSA-4mhg-xv73-xq2x", "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" }, { "value": "HIGH", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" }, { "value": "8.7", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" }, { "value": "Track", "scoring_system": "ssvc", "scoring_elements": "SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2024-12-03T18:55:21Z/" } ], "url": "https://github.com/element-hq/synapse/security/advisories/GHSA-4mhg-xv73-xq2x" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/372289?format=api", "purl": "pkg:pypi/matrix-synapse@1.106", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/matrix-synapse@1.106" }, { "url": "http://public2.vulnerablecode.io/api/packages/86739?format=api", "purl": "pkg:pypi/matrix-synapse@1.106.0", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-1xwm-33sy-3qfv" }, { "vulnerability": "VCID-3ngy-dt6j-tuef" }, { "vulnerability": "VCID-hqwh-2un3-bqd8" }, { "vulnerability": "VCID-n8mv-4upg-hfa3" }, { "vulnerability": "VCID-rcdd-qkxt-nuez" }, { "vulnerability": "VCID-s1jf-x5ug-jqcq" }, { "vulnerability": "VCID-y6j7-eetd-pkfh" } ], "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": 4.0, "exploitability": "0.5", "weighted_severity": "8.0", "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-7v7h-zrjj-pkh3" }, { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/45378?format=api", "vulnerability_id": "VCID-c1vt-9j6a-b7cr", "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": "0.57331", "published_at": "2026-06-12T12:55:00Z" }, { "value": "0.00342", "scoring_system": "epss", "scoring_elements": "0.57346", "published_at": "2026-06-13T12:55:00Z" }, { "value": "0.00342", "scoring_system": "epss", "scoring_elements": "0.57338", "published_at": "2026-06-14T12:55:00Z" }, { "value": "0.00342", "scoring_system": "epss", "scoring_elements": "0.57213", "published_at": "2026-06-11T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2024-37303" }, { "reference_url": "https://github.com/element-hq/synapse", "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:N/A:L" }, { "value": "6.9", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/element-hq/synapse" }, { "reference_url": "https://github.com/pypa/advisory-database/tree/main/vulns/matrix-synapse/PYSEC-2024-287.yaml", "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:N/A:L" }, { "value": "6.9", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/pypa/advisory-database/tree/main/vulns/matrix-synapse/PYSEC-2024-287.yaml" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2024-37303", "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:N/A:L" }, { "value": "6.9", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-37303" }, { "reference_url": "https://github.com/matrix-org/matrix-spec-proposals/pull/3916", "reference_id": "3916", "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:N/A:L" }, { "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" }, { "value": "6.9", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" }, { "value": "Track", "scoring_system": "ssvc", "scoring_elements": "SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2024-12-03T18:49:29Z/" } ], "url": "https://github.com/matrix-org/matrix-spec-proposals/pull/3916" }, { "reference_url": "https://github.com/advisories/GHSA-gjgr-7834-rhxr", "reference_id": "GHSA-gjgr-7834-rhxr", "reference_type": "", "scores": [ { "value": "MODERATE", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" } ], "url": "https://github.com/advisories/GHSA-gjgr-7834-rhxr" }, { "reference_url": "https://github.com/element-hq/synapse/security/advisories/GHSA-gjgr-7834-rhxr", "reference_id": "GHSA-gjgr-7834-rhxr", "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:N/A:L" }, { "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" }, { "value": "MODERATE", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" }, { "value": "6.9", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" }, { "value": "Track", "scoring_system": "ssvc", "scoring_elements": "SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2024-12-03T18:49:29Z/" } ], "url": "https://github.com/element-hq/synapse/security/advisories/GHSA-gjgr-7834-rhxr" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/372289?format=api", "purl": "pkg:pypi/matrix-synapse@1.106", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/matrix-synapse@1.106" }, { "url": "http://public2.vulnerablecode.io/api/packages/86739?format=api", "purl": "pkg:pypi/matrix-synapse@1.106.0", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-1xwm-33sy-3qfv" }, { "vulnerability": "VCID-3ngy-dt6j-tuef" }, { "vulnerability": "VCID-hqwh-2un3-bqd8" }, { "vulnerability": "VCID-n8mv-4upg-hfa3" }, { "vulnerability": "VCID-rcdd-qkxt-nuez" }, { "vulnerability": "VCID-s1jf-x5ug-jqcq" }, { "vulnerability": "VCID-y6j7-eetd-pkfh" } ], "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": 3.1, "exploitability": "0.5", "weighted_severity": "6.2", "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-c1vt-9j6a-b7cr" }, { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/43400?format=api", "vulnerability_id": "VCID-hqwh-2un3-bqd8", "summary": "Synapse is an open-source Matrix homeserver. Synapse versions before 1.120.1 fail to properly validate invites received over federation. This vulnerability allows a malicious server to send a specially crafted invite that disrupts the invited user's /sync functionality. Synapse 1.120.1 rejects such invalid invites received over federation and restores the ability to sync for affected users.", "references": [ { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2024-52815", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.00353", "scoring_system": "epss", "scoring_elements": "0.58194", "published_at": "2026-06-12T12:55:00Z" }, { "value": "0.00353", "scoring_system": "epss", "scoring_elements": "0.58198", "published_at": "2026-06-14T12:55:00Z" }, { "value": "0.00353", "scoring_system": "epss", "scoring_elements": "0.5808", "published_at": "2026-06-11T12:55:00Z" }, { "value": "0.00353", "scoring_system": "epss", "scoring_elements": "0.5821", "published_at": "2026-06-13T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2024-52815" }, { "reference_url": "https://github.com/element-hq/synapse", "reference_id": "", "reference_type": "", "scores": [ { "value": "8.7", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/element-hq/synapse" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2024-52815", "reference_id": "", "reference_type": "", "scores": [ { "value": "8.7", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-52815" }, { "reference_url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1088995", "reference_id": "1088995", "reference_type": "", "scores": [], "url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1088995" }, { "reference_url": "https://github.com/advisories/GHSA-f3r3-h2mq-hx2h", "reference_id": "GHSA-f3r3-h2mq-hx2h", "reference_type": "", "scores": [ { "value": "HIGH", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" } ], "url": "https://github.com/advisories/GHSA-f3r3-h2mq-hx2h" }, { "reference_url": "https://github.com/element-hq/synapse/security/advisories/GHSA-f3r3-h2mq-hx2h", "reference_id": "GHSA-f3r3-h2mq-hx2h", "reference_type": "", "scores": [ { "value": "HIGH", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" }, { "value": "8.7", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" }, { "value": "Track", "scoring_system": "ssvc", "scoring_elements": "SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2024-12-03T19:05:32Z/" } ], "url": "https://github.com/element-hq/synapse/security/advisories/GHSA-f3r3-h2mq-hx2h" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/372296?format=api", "purl": "pkg:pypi/matrix-synapse@1.120.1", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/matrix-synapse@1.120.1" } ], "aliases": [ "CVE-2024-52815", "GHSA-f3r3-h2mq-hx2h" ], "risk_score": 4.0, "exploitability": "0.5", "weighted_severity": "8.0", "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-hqwh-2un3-bqd8" }, { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/70007?format=api", "vulnerability_id": "VCID-n8mv-4upg-hfa3", "summary": "Synapse is an open source Matrix homeserver implementation. Prior to 1.152.1, local authenticated users can cause Synapse to starve other requests of CPU and lead to other requests failing, causing other users to be denied service. This vulnerability is fixed in 1.152.1.", "references": [ { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2026-45078", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.00014", "scoring_system": "epss", "scoring_elements": "0.02901", "published_at": "2026-06-14T12:55:00Z" }, { "value": "0.00014", "scoring_system": "epss", "scoring_elements": "0.0289", "published_at": "2026-06-13T12:55:00Z" }, { "value": "0.00014", "scoring_system": "epss", "scoring_elements": "0.02895", "published_at": "2026-06-11T12:55:00Z" }, { "value": "0.00014", "scoring_system": "epss", "scoring_elements": "0.02905", "published_at": "2026-06-12T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-45078" }, { "reference_url": "https://github.com/element-hq/synapse", "reference_id": "", "reference_type": "", "scores": [ { "value": "5.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H" }, { "value": "7.1", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/element-hq/synapse" }, { "reference_url": "https://github.com/element-hq/synapse/commit/3f58bc50dfba5768ee43ce48c5e74c25ba0b078a", "reference_id": "", "reference_type": "", "scores": [ { "value": "5.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H" }, { "value": "7.1", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/element-hq/synapse/commit/3f58bc50dfba5768ee43ce48c5e74c25ba0b078a" }, { "reference_url": "https://github.com/element-hq/synapse/issues/19394", "reference_id": "", "reference_type": "", "scores": [ { "value": "5.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H" }, { "value": "7.1", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/element-hq/synapse/issues/19394" }, { "reference_url": "https://github.com/pypa/advisory-database/tree/main/vulns/matrix-synapse/PYSEC-2026-191.yaml", "reference_id": "", "reference_type": "", "scores": [ { "value": "5.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H" }, { "value": "7.1", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/pypa/advisory-database/tree/main/vulns/matrix-synapse/PYSEC-2026-191.yaml" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-45078", "reference_id": "", "reference_type": "", "scores": [ { "value": "5.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H" }, { "value": "7.1", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-45078" }, { "reference_url": "https://github.com/advisories/GHSA-8q93-326v-3m7g", "reference_id": "GHSA-8q93-326v-3m7g", "reference_type": "", "scores": [ { "value": "HIGH", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" } ], "url": "https://github.com/advisories/GHSA-8q93-326v-3m7g" }, { "reference_url": "https://github.com/element-hq/synapse/security/advisories/GHSA-8q93-326v-3m7g", "reference_id": "GHSA-8q93-326v-3m7g", "reference_type": "", "scores": [ { "value": "5.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H" }, { "value": "HIGH", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" }, { "value": "6.8", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N" }, { "value": "7.1", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" }, { "value": "Track", "scoring_system": "ssvc", "scoring_elements": "SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-05-29T15:31:35Z/" } ], "url": "https://github.com/element-hq/synapse/security/advisories/GHSA-8q93-326v-3m7g" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/93940?format=api", "purl": "pkg:pypi/matrix-synapse@1.152.1", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/matrix-synapse@1.152.1" } ], "aliases": [ "CVE-2026-45078", "CVE-2026-45078,", "GHSA-8q93-326v-3m7g", "PYSEC-2026-191" ], "risk_score": 4.0, "exploitability": "0.5", "weighted_severity": "8.0", "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-n8mv-4upg-hfa3" }, { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/44672?format=api", "vulnerability_id": "VCID-rcdd-qkxt-nuez", "summary": "Synapse is an open-source Matrix homeserver. In Synapse versions before 1.120.1, enabling the dynamic_thumbnails option or processing a specially crafted request could trigger the decoding and thumbnail generation of uncommon image formats, potentially invoking external tools like Ghostscript for processing. This significantly expands the attack surface in a historically vulnerable area, presenting a risk that far outweighs the benefit, particularly since these formats are rarely used on the open web or within the Matrix ecosystem. Synapse 1.120.1 addresses the issue by restricting thumbnail generation to images in the following widely used formats: PNG, JPEG, GIF, and WebP. This vulnerability is fixed in 1.120.1.", "references": [ { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2024-53863", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.00962", "scoring_system": "epss", "scoring_elements": "0.76998", "published_at": "2026-06-12T12:55:00Z" }, { "value": "0.00962", "scoring_system": "epss", "scoring_elements": "0.77006", "published_at": "2026-06-14T12:55:00Z" }, { "value": "0.00962", "scoring_system": "epss", "scoring_elements": "0.76926", "published_at": "2026-06-11T12:55:00Z" }, { "value": "0.00962", "scoring_system": "epss", "scoring_elements": "0.77013", "published_at": "2026-06-13T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2024-53863" }, { "reference_url": "https://github.com/element-hq/synapse", "reference_id": "", "reference_type": "", "scores": [ { "value": "8.2", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/element-hq/synapse" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2024-53863", "reference_id": "", "reference_type": "", "scores": [ { "value": "8.2", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-53863" }, { "reference_url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1088995", "reference_id": "1088995", "reference_type": "", "scores": [], "url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1088995" }, { "reference_url": "https://github.com/advisories/GHSA-vp6v-whfm-rv3g", "reference_id": "GHSA-vp6v-whfm-rv3g", "reference_type": "", "scores": [ { "value": "HIGH", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" } ], "url": "https://github.com/advisories/GHSA-vp6v-whfm-rv3g" }, { "reference_url": "https://github.com/element-hq/synapse/security/advisories/GHSA-vp6v-whfm-rv3g", "reference_id": "GHSA-vp6v-whfm-rv3g", "reference_type": "", "scores": [ { "value": "HIGH", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" }, { "value": "8.2", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N" }, { "value": "8.2", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" }, { "value": "Track", "scoring_system": "ssvc", "scoring_elements": "SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2024-12-03T19:07:32Z/" } ], "url": "https://github.com/element-hq/synapse/security/advisories/GHSA-vp6v-whfm-rv3g" }, { "reference_url": "https://usn.ubuntu.com/7444-1/", "reference_id": "USN-7444-1", "reference_type": "", "scores": [], "url": "https://usn.ubuntu.com/7444-1/" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/372296?format=api", "purl": "pkg:pypi/matrix-synapse@1.120.1", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/matrix-synapse@1.120.1" } ], "aliases": [ "CVE-2024-53863", "GHSA-vp6v-whfm-rv3g" ], "risk_score": 4.0, "exploitability": "0.5", "weighted_severity": "8.0", "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-rcdd-qkxt-nuez" }, { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/43596?format=api", "vulnerability_id": "VCID-s1jf-x5ug-jqcq", "summary": "Synapse is an open-source Matrix homeserver. In Synapse before 1.120.1, multipart/form-data requests can in certain configurations transiently increase memory consumption beyond expected levels while processing the request, which can be used to amplify denial of service attacks. Synapse 1.120.1 resolves the issue by denying requests with unsupported multipart/form-data content type.", "references": [ { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2024-52805", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.01089", "scoring_system": "epss", "scoring_elements": "0.78418", "published_at": "2026-06-14T12:55:00Z" }, { "value": "0.01089", "scoring_system": "epss", "scoring_elements": "0.78422", "published_at": "2026-06-13T12:55:00Z" }, { "value": "0.01089", "scoring_system": "epss", "scoring_elements": "0.78408", "published_at": "2026-06-12T12:55:00Z" }, { "value": "0.01089", "scoring_system": "epss", "scoring_elements": "0.7834", "published_at": "2026-06-11T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2024-52805" }, { "reference_url": "https://github.com/element-hq/synapse", "reference_id": "", "reference_type": "", "scores": [ { "value": "8.2", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/element-hq/synapse" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2024-52805", "reference_id": "", "reference_type": "", "scores": [ { "value": "8.2", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-52805" }, { "reference_url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1088995", "reference_id": "1088995", "reference_type": "", "scores": [], "url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1088995" }, { "reference_url": "https://github.com/twisted/twisted/issues/4688#issuecomment-1167705518", "reference_id": "4688#issuecomment-1167705518", "reference_type": "", "scores": [ { "value": "8.2", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N" }, { "value": "8.2", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" }, { "value": "Track", "scoring_system": "ssvc", "scoring_elements": "SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2024-12-03T19:04:05Z/" } ], "url": "https://github.com/twisted/twisted/issues/4688#issuecomment-1167705518" }, { "reference_url": "https://github.com/twisted/twisted/issues/4688#issuecomment-2385711609", "reference_id": "4688#issuecomment-2385711609", "reference_type": "", "scores": [ { "value": "8.2", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N" }, { "value": "8.2", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" }, { "value": "Track", "scoring_system": "ssvc", "scoring_elements": "SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2024-12-03T19:04:05Z/" } ], "url": "https://github.com/twisted/twisted/issues/4688#issuecomment-2385711609" }, { "reference_url": "https://github.com/advisories/GHSA-rfq8-j7rh-8hf2", "reference_id": "GHSA-rfq8-j7rh-8hf2", "reference_type": "", "scores": [ { "value": "HIGH", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" } ], "url": "https://github.com/advisories/GHSA-rfq8-j7rh-8hf2" }, { "reference_url": "https://github.com/element-hq/synapse/security/advisories/GHSA-rfq8-j7rh-8hf2", "reference_id": "GHSA-rfq8-j7rh-8hf2", "reference_type": "", "scores": [ { "value": "HIGH", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" }, { "value": "8.2", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N" }, { "value": "8.2", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" }, { "value": "Track", "scoring_system": "ssvc", "scoring_elements": "SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2024-12-03T19:04:05Z/" } ], "url": "https://github.com/element-hq/synapse/security/advisories/GHSA-rfq8-j7rh-8hf2" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/372296?format=api", "purl": "pkg:pypi/matrix-synapse@1.120.1", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/matrix-synapse@1.120.1" } ], "aliases": [ "CVE-2024-52805", "GHSA-rfq8-j7rh-8hf2" ], "risk_score": 4.0, "exploitability": "0.5", "weighted_severity": "8.0", "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-s1jf-x5ug-jqcq" }, { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/127905?format=api", "vulnerability_id": "VCID-y6j7-eetd-pkfh", "summary": "Synapse is an open source Matrix homeserver implementation. Lack of validation for device keys in Synapse before 1.138.3 and in Synapse 1.139.0 allow an attacker registered on the victim homeserver to degrade federation functionality, unpredictably breaking outbound federation to other homeservers. The issue is patched in Synapse 1.138.3, 1.138.4, 1.139.1, and 1.139.2. Note that even though 1.138.3 and 1.139.1 fix the vulnerability, they inadvertently introduced an unrelated regression. For this reason, the maintainers of Synapse recommend skipping these releases and upgrading straight to 1.138.4 and 1.139.2.", "references": [ { "reference_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2025-61672.json", "reference_id": "", "reference_type": "", "scores": [ { "value": "5.4", "scoring_system": "cvssv3", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L" } ], "url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2025-61672.json" }, { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2025-61672", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.00046", "scoring_system": "epss", "scoring_elements": "0.14801", "published_at": "2026-06-12T12:55:00Z" }, { "value": "0.00046", "scoring_system": "epss", "scoring_elements": "0.14679", "published_at": "2026-06-11T12:55:00Z" }, { "value": "0.0005", "scoring_system": "epss", "scoring_elements": "0.16114", "published_at": "2026-06-14T12:55:00Z" }, { "value": "0.0005", "scoring_system": "epss", "scoring_elements": "0.16148", "published_at": "2026-06-13T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2025-61672" }, { "reference_url": "https://github.com/element-hq/synapse", "reference_id": "", "reference_type": "", "scores": [ { "value": "5.3", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/element-hq/synapse" }, { "reference_url": "https://github.com/element-hq/synapse/releases/tag/v1.138.4", "reference_id": "", "reference_type": "", "scores": [ { "value": "5.3", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/element-hq/synapse/releases/tag/v1.138.4" }, { "reference_url": "https://github.com/element-hq/synapse/releases/tag/v1.139.2", "reference_id": "", "reference_type": "", "scores": [ { "value": "5.3", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/element-hq/synapse/releases/tag/v1.139.2" }, { "reference_url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1117854", "reference_id": "1117854", "reference_type": "", "scores": [], "url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1117854" }, { "reference_url": "https://github.com/element-hq/synapse/pull/17097", "reference_id": "17097", "reference_type": "", "scores": [ { "value": "5.3", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" }, { "value": "Track", "scoring_system": "ssvc", "scoring_elements": "SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-10-15T16:10:58Z/" } ], "url": "https://github.com/element-hq/synapse/pull/17097" }, { "reference_url": "https://bugzilla.redhat.com/show_bug.cgi?id=2402525", "reference_id": "2402525", "reference_type": "", "scores": [], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2402525" }, { "reference_url": "https://github.com/element-hq/synapse/commit/26aaaf9e48fff80cf67a20c691c75d670034b3c1", "reference_id": "26aaaf9e48fff80cf67a20c691c75d670034b3c1", "reference_type": "", "scores": [ { "value": "5.3", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" }, { "value": "Track", "scoring_system": "ssvc", "scoring_elements": "SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-10-15T16:10:58Z/" } ], "url": "https://github.com/element-hq/synapse/commit/26aaaf9e48fff80cf67a20c691c75d670034b3c1" }, { "reference_url": "https://github.com/element-hq/synapse/commit/7069636c2d6d1ef2022287addf3ed8b919ef2740", "reference_id": "7069636c2d6d1ef2022287addf3ed8b919ef2740", "reference_type": "", "scores": [ { "value": "5.3", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" }, { "value": "Track", "scoring_system": "ssvc", "scoring_elements": "SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-10-15T16:10:58Z/" } ], "url": "https://github.com/element-hq/synapse/commit/7069636c2d6d1ef2022287addf3ed8b919ef2740" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2025-61672", "reference_id": "CVE-2025-61672", "reference_type": "", "scores": [ { "value": "5.3", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-61672" }, { "reference_url": "https://github.com/advisories/GHSA-fh66-fcv5-jjfr", "reference_id": "GHSA-fh66-fcv5-jjfr", "reference_type": "", "scores": [ { "value": "MODERATE", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" } ], "url": "https://github.com/advisories/GHSA-fh66-fcv5-jjfr" }, { "reference_url": "https://github.com/element-hq/synapse/security/advisories/GHSA-fh66-fcv5-jjfr", "reference_id": "GHSA-fh66-fcv5-jjfr", "reference_type": "", "scores": [ { "value": "MODERATE", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" }, { "value": "5.3", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" }, { "value": "Track", "scoring_system": "ssvc", "scoring_elements": "SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-10-15T16:10:58Z/" } ], "url": "https://github.com/element-hq/synapse/security/advisories/GHSA-fh66-fcv5-jjfr" }, { "reference_url": "https://github.com/element-hq/synapse/releases/tag/v1.138.3", "reference_id": "v1.138.3", "reference_type": "", "scores": [ { "value": "5.3", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" }, { "value": "Track", "scoring_system": "ssvc", "scoring_elements": "SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-10-15T16:10:58Z/" } ], "url": "https://github.com/element-hq/synapse/releases/tag/v1.138.3" }, { "reference_url": "https://github.com/element-hq/synapse/releases/tag/v1.139.1", "reference_id": "v1.139.1", "reference_type": "", "scores": [ { "value": "5.3", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" }, { "value": "Track", "scoring_system": "ssvc", "scoring_elements": "SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-10-15T16:10:58Z/" } ], "url": "https://github.com/element-hq/synapse/releases/tag/v1.139.1" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/34136?format=api", "purl": "pkg:pypi/matrix-synapse@1.138.3", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-1xwm-33sy-3qfv" }, { "vulnerability": "VCID-n8mv-4upg-hfa3" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/matrix-synapse@1.138.3" }, { "url": "http://public2.vulnerablecode.io/api/packages/34138?format=api", "purl": "pkg:pypi/matrix-synapse@1.139.1", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-1xwm-33sy-3qfv" }, { "vulnerability": "VCID-n8mv-4upg-hfa3" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/matrix-synapse@1.139.1" } ], "aliases": [ "CVE-2025-61672", "GHSA-fh66-fcv5-jjfr" ], "risk_score": 3.1, "exploitability": "0.5", "weighted_severity": "6.2", "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-y6j7-eetd-pkfh" }, { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/182398?format=api", "vulnerability_id": "VCID-z6uu-5bdh-pud4", "summary": "Multiple vulnerabilites have been found in Synapse, the worst of which could result in information leaks.", "references": [ { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2023-43796", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.00233", "scoring_system": "epss", "scoring_elements": "0.46465", "published_at": "2026-06-13T12:55:00Z" }, { "value": "0.00233", "scoring_system": "epss", "scoring_elements": "0.46455", "published_at": "2026-06-12T12:55:00Z" }, { "value": "0.00233", "scoring_system": "epss", "scoring_elements": "0.46309", "published_at": "2026-06-11T12:55:00Z" }, { "value": "0.00233", "scoring_system": "epss", "scoring_elements": "0.46451", "published_at": "2026-06-14T12:55:00Z" } ], "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": [ { "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" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "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" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "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" }, { "value": "MODERATE", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "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": [ { "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" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "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": [ { "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" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "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": [ { "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" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VH3RNC5ZPQZ4OKPSL4E6BBJSZOQLGDEY" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2023-43796", "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" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-43796" }, { "reference_url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1055255", "reference_id": "1055255", "reference_type": "", "scores": [], "url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1055255" }, { "reference_url": "https://github.com/advisories/GHSA-mp92-3jfm-3575", "reference_id": "GHSA-mp92-3jfm-3575", "reference_type": "", "scores": [ { "value": "MODERATE", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" } ], "url": "https://github.com/advisories/GHSA-mp92-3jfm-3575" }, { "reference_url": "https://usn.ubuntu.com/7444-1/", "reference_id": "USN-7444-1", "reference_type": "", "scores": [], "url": "https://usn.ubuntu.com/7444-1/" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/80687?format=api", "purl": "pkg:pypi/matrix-synapse@1.95.1", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-1xwm-33sy-3qfv" }, { "vulnerability": "VCID-2ctw-4fy5-4ufd" }, { "vulnerability": "VCID-3ngy-dt6j-tuef" }, { "vulnerability": "VCID-7v7h-zrjj-pkh3" }, { "vulnerability": "VCID-c1vt-9j6a-b7cr" }, { "vulnerability": "VCID-hqwh-2un3-bqd8" }, { "vulnerability": "VCID-n8mv-4upg-hfa3" }, { "vulnerability": "VCID-rcdd-qkxt-nuez" }, { "vulnerability": "VCID-s1jf-x5ug-jqcq" }, { "vulnerability": "VCID-y6j7-eetd-pkfh" } ], "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": 3.1, "exploitability": "0.5", "weighted_severity": "6.2", "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-z6uu-5bdh-pud4" } ], "fixing_vulnerabilities": [], "risk_score": "4.0", "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/matrix-synapse@1.95.0" }