Package Instance
Lookup for vulnerable packages by Package URL.
GET /api/packages/568758?format=api
{ "url": "http://public2.vulnerablecode.io/api/packages/568758?format=api", "purl": "pkg:gem/gitlab-puma@4.0.0", "type": "gem", "namespace": "", "name": "gitlab-puma", "version": "4.0.0", "qualifiers": {}, "subpath": "", "is_vulnerable": true, "next_non_vulnerable_version": null, "latest_non_vulnerable_version": null, "affected_by_vulnerabilities": [ { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/33438?format=api", "vulnerability_id": "VCID-ap87-c4dc-zfcy", "summary": "HTTP Response Splitting (Early Hints) in Puma\n### Impact\nIf an application using Puma allows untrusted input in an early-hints header, an attacker can use a carriage return character to end the header and inject malicious content, such as additional headers or an entirely new response body. This vulnerability is known as [HTTP Response Splitting](https://owasp.org/www-community/attacks/HTTP_Response_Splitting).\n\nWhile not an attack in itself, response splitting is a vector for several other attacks, such as cross-site scripting (XSS).\n\nThis is related to [CVE-2020-5247](https://github.com/puma/puma/security/advisories/GHSA-84j7-475p-hp8v), which fixed this vulnerability but only for regular responses.\n\n### Patches\nThis has been fixed in 4.3.3 and 3.12.4.\n\n### Workarounds\nUsers can not allow untrusted/user input in the Early Hints response header.\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Open an issue in [puma](https://github.com/puma/puma)\n* Email us a project maintainer. [Email addresses are listed in our Code of Conduct](https://github.com/puma/puma/blob/master/CODE_OF_CONDUCT.md#enforcement).", "references": [ { "reference_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-5249.json", "reference_id": "", "reference_type": "", "scores": [ { "value": "5.3", "scoring_system": "cvssv3", "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N" } ], "url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-5249.json" }, { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2020-5249", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.00498", "scoring_system": "epss", "scoring_elements": "0.65899", "published_at": "2026-04-21T12:55:00Z" }, { "value": "0.00498", "scoring_system": "epss", "scoring_elements": "0.6591", "published_at": "2026-04-18T12:55:00Z" }, { "value": "0.00498", "scoring_system": "epss", "scoring_elements": "0.65896", "published_at": "2026-04-16T12:55:00Z" }, { "value": "0.00498", "scoring_system": "epss", "scoring_elements": "0.65861", "published_at": "2026-04-13T12:55:00Z" }, { "value": "0.00498", "scoring_system": "epss", "scoring_elements": "0.65891", "published_at": "2026-04-12T12:55:00Z" }, { "value": "0.00498", "scoring_system": "epss", "scoring_elements": "0.65903", "published_at": "2026-04-11T12:55:00Z" }, { "value": "0.00498", "scoring_system": "epss", "scoring_elements": "0.65825", "published_at": "2026-04-02T12:55:00Z" }, { "value": "0.00498", "scoring_system": "epss", "scoring_elements": "0.65775", "published_at": "2026-04-01T12:55:00Z" }, { "value": "0.00498", "scoring_system": "epss", "scoring_elements": "0.65885", "published_at": "2026-04-09T12:55:00Z" }, { "value": "0.00498", "scoring_system": "epss", "scoring_elements": "0.65873", "published_at": "2026-04-08T12:55:00Z" }, { "value": "0.00498", "scoring_system": "epss", "scoring_elements": "0.65821", "published_at": "2026-04-07T12:55:00Z" }, { "value": "0.00498", "scoring_system": "epss", "scoring_elements": "0.65855", "published_at": "2026-04-04T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2020-5249" }, { "reference_url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-5249", "reference_id": "", "reference_type": "", "scores": [], "url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-5249" }, { "reference_url": "https://github.com/puma/puma", "reference_id": "", "reference_type": "", "scores": [ { "value": "6.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/puma/puma" }, { "reference_url": "https://github.com/puma/puma/commit/c22712fc93284a45a93f9ad7023888f3a65524f3", "reference_id": "", "reference_type": "", "scores": [ { "value": "6.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/puma/puma/commit/c22712fc93284a45a93f9ad7023888f3a65524f3" }, { "reference_url": "https://github.com/puma/puma/security/advisories/GHSA-33vf-4xgg-9r58", "reference_id": "", "reference_type": "", "scores": [ { "value": "6.5", "scoring_system": "cvssv3", "scoring_elements": "" }, { "value": "6.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L" }, { "value": "MODERATE", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/puma/puma/security/advisories/GHSA-33vf-4xgg-9r58" }, { "reference_url": "https://github.com/puma/puma/security/advisories/GHSA-84j7-475p-hp8v", "reference_id": "", "reference_type": "", "scores": [ { "value": "6.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/puma/puma/security/advisories/GHSA-84j7-475p-hp8v" }, { "reference_url": "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/puma/CVE-2020-5249.yml", "reference_id": "", "reference_type": "", "scores": [ { "value": "6.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/puma/CVE-2020-5249.yml" }, { "reference_url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BMJ3CGZ3DLBJ5WUUKMI5ZFXFJQMXJZIK", "reference_id": "", "reference_type": "", "scores": [ { "value": "6.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BMJ3CGZ3DLBJ5WUUKMI5ZFXFJQMXJZIK" }, { "reference_url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BMJ3CGZ3DLBJ5WUUKMI5ZFXFJQMXJZIK/", "reference_id": "", "reference_type": "", "scores": [], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BMJ3CGZ3DLBJ5WUUKMI5ZFXFJQMXJZIK/" }, { "reference_url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DIHVO3CQMU7BZC7FCTSRJ33YDNS3GFPK", "reference_id": "", "reference_type": "", "scores": [ { "value": "6.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DIHVO3CQMU7BZC7FCTSRJ33YDNS3GFPK" }, { "reference_url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DIHVO3CQMU7BZC7FCTSRJ33YDNS3GFPK/", "reference_id": "", "reference_type": "", "scores": [], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DIHVO3CQMU7BZC7FCTSRJ33YDNS3GFPK/" }, { "reference_url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NJ3LL5F5QADB6LM46GXZETREAKZMQNRD", "reference_id": "", "reference_type": "", "scores": [ { "value": "6.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NJ3LL5F5QADB6LM46GXZETREAKZMQNRD" }, { "reference_url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NJ3LL5F5QADB6LM46GXZETREAKZMQNRD/", "reference_id": "", "reference_type": "", "scores": [], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NJ3LL5F5QADB6LM46GXZETREAKZMQNRD/" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2020-5249", "reference_id": "", "reference_type": "", "scores": [ { "value": "6.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-5249" }, { "reference_url": "https://owasp.org/www-community/attacks/HTTP_Response_Splitting", "reference_id": "", "reference_type": "", "scores": [ { "value": "6.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://owasp.org/www-community/attacks/HTTP_Response_Splitting" }, { "reference_url": "https://bugzilla.redhat.com/show_bug.cgi?id=1816181", "reference_id": "1816181", "reference_type": "", "scores": [], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1816181" }, { "reference_url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=953122", "reference_id": "953122", "reference_type": "", "scores": [], "url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=953122" }, { "reference_url": "https://github.com/advisories/GHSA-33vf-4xgg-9r58", "reference_id": "GHSA-33vf-4xgg-9r58", "reference_type": "", "scores": [ { "value": "MODERATE", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" } ], "url": "https://github.com/advisories/GHSA-33vf-4xgg-9r58" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/568873?format=api", "purl": "pkg:gem/gitlab-puma@4.3.3", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:gem/gitlab-puma@4.3.3" } ], "aliases": [ "CVE-2020-5249", "GHSA-33vf-4xgg-9r58" ], "risk_score": 3.1, "exploitability": "0.5", "weighted_severity": "6.2", "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-ap87-c4dc-zfcy" }, { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/33977?format=api", "vulnerability_id": "VCID-bk4b-h5hu-2qeq", "summary": "HTTP Smuggling via Transfer-Encoding Header in Puma\n### Impact\nThis is a similar but different vulnerability to the one patched in 3.12.5 and 4.3.4.\n\nA client could smuggle a request through a proxy, causing the proxy to send a response back to another unknown client. \n\nIf the proxy uses persistent connections and the client adds another request in via HTTP pipelining, the proxy may mistake it as the first request's body. Puma, however, would see it as two requests, and when processing the second request, send back a response that the proxy does not expect. If the proxy has reused the persistent connection to Puma to send another request for a different client, the second response from the first client will be sent to the second client.\n\n### Patches\n\nThe problem has been fixed in Puma 3.12.6 and Puma 4.3.5.\n\n### For more information\n\nIf you have any questions or comments about this advisory:\n\n* Open an issue in [Puma](https://github.com/puma/puma)\n* See our [security policy](https://github.com/puma/puma/security/policy)", "references": [ { "reference_url": "http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00034.html", "reference_id": "", "reference_type": "", "scores": [ { "value": "6.8", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00034.html" }, { "reference_url": "http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00038.html", "reference_id": "", "reference_type": "", "scores": [ { "value": "6.8", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00038.html" }, { "reference_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-11077.json", "reference_id": "", "reference_type": "", "scores": [ { "value": "6.8", "scoring_system": "cvssv3", "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N" } ], "url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-11077.json" }, { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2020-11077", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.00821", "scoring_system": "epss", "scoring_elements": "0.74429", "published_at": "2026-04-21T12:55:00Z" }, { "value": "0.00821", "scoring_system": "epss", "scoring_elements": "0.74348", "published_at": "2026-04-01T12:55:00Z" }, { "value": "0.00821", "scoring_system": "epss", "scoring_elements": "0.74352", "published_at": "2026-04-02T12:55:00Z" }, { "value": "0.00821", "scoring_system": "epss", "scoring_elements": "0.74379", "published_at": "2026-04-04T12:55:00Z" }, { "value": "0.00821", "scoring_system": "epss", "scoring_elements": "0.74353", "published_at": "2026-04-07T12:55:00Z" }, { "value": "0.00821", "scoring_system": "epss", "scoring_elements": "0.74386", "published_at": "2026-04-08T12:55:00Z" }, { "value": "0.00821", "scoring_system": "epss", "scoring_elements": "0.74401", "published_at": "2026-04-09T12:55:00Z" }, { "value": "0.00821", "scoring_system": "epss", "scoring_elements": "0.74422", "published_at": "2026-04-11T12:55:00Z" }, { "value": "0.00821", "scoring_system": "epss", "scoring_elements": "0.74402", "published_at": "2026-04-12T12:55:00Z" }, { "value": "0.00821", "scoring_system": "epss", "scoring_elements": "0.74394", "published_at": "2026-04-13T12:55:00Z" }, { "value": "0.00821", "scoring_system": "epss", "scoring_elements": "0.74431", "published_at": "2026-04-16T12:55:00Z" }, { "value": "0.00821", "scoring_system": "epss", "scoring_elements": "0.74439", "published_at": "2026-04-18T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2020-11077" }, { "reference_url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-11077", "reference_id": "", "reference_type": "", "scores": [], "url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-11077" }, { "reference_url": "https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml", "reference_id": "", "reference_type": "", "scores": [ { "value": "6.8", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N" } ], "url": "https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml" }, { "reference_url": "https://github.com/puma/puma", "reference_id": "", "reference_type": "", "scores": [ { "value": "6.8", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/puma/puma" }, { "reference_url": "https://github.com/puma/puma/blob/master/History.md#434435-and-31253126--2020-05-22", "reference_id": "", "reference_type": "", "scores": [ { "value": "6.8", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/puma/puma/blob/master/History.md#434435-and-31253126--2020-05-22" }, { "reference_url": "https://github.com/puma/puma/security/advisories/GHSA-w64w-qqph-5gxm", "reference_id": "", "reference_type": "", "scores": [ { "value": "6.8", "scoring_system": "cvssv3", "scoring_elements": "" }, { "value": "6.8", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N" }, { "value": "MODERATE", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/puma/puma/security/advisories/GHSA-w64w-qqph-5gxm" }, { "reference_url": "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/puma/CVE-2020-11077.yml", "reference_id": "", "reference_type": "", "scores": [ { "value": "6.8", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/puma/CVE-2020-11077.yml" }, { "reference_url": "https://lists.debian.org/debian-lts-announce/2020/10/msg00009.html", "reference_id": "", "reference_type": "", "scores": [ { "value": "6.8", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://lists.debian.org/debian-lts-announce/2020/10/msg00009.html" }, { "reference_url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SKIY5H67GJIGJL6SMFWFLUQQQR3EMVPR", "reference_id": "", "reference_type": "", "scores": [ { "value": "6.8", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SKIY5H67GJIGJL6SMFWFLUQQQR3EMVPR" }, { "reference_url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SKIY5H67GJIGJL6SMFWFLUQQQR3EMVPR/", "reference_id": "", "reference_type": "", "scores": [], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SKIY5H67GJIGJL6SMFWFLUQQQR3EMVPR/" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2020-11077", "reference_id": "", "reference_type": "", "scores": [ { "value": "6.8", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-11077" }, { "reference_url": "https://bugzilla.redhat.com/show_bug.cgi?id=1842534", "reference_id": "1842534", "reference_type": "", "scores": [], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1842534" }, { "reference_url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=972102", "reference_id": "972102", "reference_type": "", "scores": [], "url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=972102" }, { "reference_url": "https://github.com/advisories/GHSA-w64w-qqph-5gxm", "reference_id": "GHSA-w64w-qqph-5gxm", "reference_type": "", "scores": [ { "value": "MODERATE", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" } ], "url": "https://github.com/advisories/GHSA-w64w-qqph-5gxm" }, { "reference_url": "https://usn.ubuntu.com/6682-1/", "reference_id": "USN-6682-1", "reference_type": "", "scores": [], "url": "https://usn.ubuntu.com/6682-1/" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/248330?format=api", "purl": "pkg:gem/gitlab-puma@4.3.5.gitlab.3", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-fhu7-fyha-9khj" }, { "vulnerability": "VCID-gkf9-7a9x-nkh4" }, { "vulnerability": "VCID-jwun-grgg-2uet" }, { "vulnerability": "VCID-q37p-vzmm-aken" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:gem/gitlab-puma@4.3.5.gitlab.3" } ], "aliases": [ "CVE-2020-11077", "GHSA-w64w-qqph-5gxm" ], "risk_score": 3.1, "exploitability": "0.5", "weighted_severity": "6.2", "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-bk4b-h5hu-2qeq" }, { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/34000?format=api", "vulnerability_id": "VCID-euqw-bed6-z7d6", "summary": "HTTP Smuggling via Transfer-Encoding Header in Puma\n### Impact\n\nBy using an invalid transfer-encoding header, an attacker could [smuggle an HTTP response.](https://portswigger.net/web-security/request-smuggling)\n\nOriginally reported by @ZeddYu, who has our thanks for the detailed report.\n\n### Patches\n\nThe problem has been fixed in Puma 3.12.5 and Puma 4.3.4.\n\n### For more information\n\nIf you have any questions or comments about this advisory:\n\n* Open an issue in [Puma](https://github.com/puma/puma)\n* See our [security policy](https://github.com/puma/puma/security/policy)", "references": [ { "reference_url": "http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00034.html", "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:H/A:N" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00034.html" }, { "reference_url": "http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00038.html", "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:H/A:N" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00038.html" }, { "reference_url": 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"scoring_elements": "0.82728", "published_at": "2026-04-11T12:55:00Z" }, { "value": "0.01782", "scoring_system": "epss", "scoring_elements": "0.82722", "published_at": "2026-04-12T12:55:00Z" }, { "value": "0.01782", "scoring_system": "epss", "scoring_elements": "0.82718", "published_at": "2026-04-13T12:55:00Z" }, { "value": "0.01782", "scoring_system": "epss", "scoring_elements": "0.82757", "published_at": "2026-04-18T12:55:00Z" }, { "value": "0.01939", "scoring_system": "epss", "scoring_elements": "0.83381", "published_at": "2026-04-04T12:55:00Z" }, { "value": "0.01939", "scoring_system": "epss", "scoring_elements": "0.83366", "published_at": "2026-04-02T12:55:00Z" }, { "value": "0.01939", "scoring_system": "epss", "scoring_elements": "0.83353", "published_at": "2026-04-01T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2020-11076" }, { "reference_url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-11076", "reference_id": "", "reference_type": "", "scores": [], "url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-11076" }, { "reference_url": "https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml", "reference_id": "", "reference_type": "", "scores": [ { "value": "6.8", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N" } ], "url": "https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml" }, { "reference_url": "https://github.com/puma/puma", "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:H/A:N" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/puma/puma" }, { "reference_url": "https://github.com/puma/puma/blob/master/History.md#434435-and-31253126--2020-05-22", "reference_id": "", "reference_type": "", "scores": [ { "value": "7.5", "scoring_system": "cvssv3.1", 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"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SKIY5H67GJIGJL6SMFWFLUQQQR3EMVPR/" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2020-11076", "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:H/A:N" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-11076" }, { "reference_url": "https://bugzilla.redhat.com/show_bug.cgi?id=1842539", "reference_id": "1842539", "reference_type": "", "scores": [], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1842539" }, { "reference_url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=972102", "reference_id": "972102", "reference_type": "", "scores": [], "url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=972102" }, { "reference_url": "https://github.com/advisories/GHSA-x7jg-6pwg-fx5h", "reference_id": "GHSA-x7jg-6pwg-fx5h", "reference_type": "", "scores": [ { "value": "HIGH", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" } ], "url": "https://github.com/advisories/GHSA-x7jg-6pwg-fx5h" }, { "reference_url": "https://usn.ubuntu.com/6682-1/", "reference_id": "USN-6682-1", "reference_type": "", "scores": [], "url": "https://usn.ubuntu.com/6682-1/" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/248330?format=api", "purl": "pkg:gem/gitlab-puma@4.3.5.gitlab.3", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-fhu7-fyha-9khj" }, { "vulnerability": "VCID-gkf9-7a9x-nkh4" }, { "vulnerability": "VCID-jwun-grgg-2uet" }, { "vulnerability": "VCID-q37p-vzmm-aken" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:gem/gitlab-puma@4.3.5.gitlab.3" } ], "aliases": [ "CVE-2020-11076", "GHSA-x7jg-6pwg-fx5h" ], "risk_score": 4.0, "exploitability": "0.5", "weighted_severity": "8.0", "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-euqw-bed6-z7d6" }, { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/33339?format=api", "vulnerability_id": "VCID-pr2m-wx1b-hqbz", "summary": "HTTP Response Splitting in Puma\nIn Puma (RubyGem) before 4.3.2 and 3.12.3, if an application using Puma allows untrusted input in a response header, an attacker can use newline characters (i.e. `CR`, `LF` or`/r`, `/n`) to end the header and inject malicious content, such as additional headers or an entirely new response body. This vulnerability is known as HTTP Response Splitting.\n\nWhile not an attack in itself, response splitting is a vector for several other attacks, such as cross-site scripting (XSS).\n\nThis is related to CVE-2019-16254, which fixed this vulnerability for the WEBrick Ruby web server.\n\nThis has been fixed in versions 4.3.2 and 3.12.3 by checking all headers for line endings and rejecting headers with those characters.", "references": [ { "reference_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-5247.json", "reference_id": "", "reference_type": "", "scores": [ { "value": "5.3", "scoring_system": "cvssv3", "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N" } ], "url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-5247.json" }, { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2020-5247", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.02094", "scoring_system": "epss", "scoring_elements": 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"https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml" }, { "reference_url": "https://github.com/puma/puma", "reference_id": "", "reference_type": "", "scores": [ { "value": "6.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/puma/puma" }, { "reference_url": "https://github.com/puma/puma/commit/c36491756f68a9d6a8b3a49e7e5eb07fe6f1332f", "reference_id": "", "reference_type": "", "scores": [ { "value": "6.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/puma/puma/commit/c36491756f68a9d6a8b3a49e7e5eb07fe6f1332f" }, { "reference_url": "https://github.com/puma/puma/security/advisories/GHSA-84j7-475p-hp8v", "reference_id": "", 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"scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://owasp.org/www-community/attacks/HTTP_Response_Splitting" }, { "reference_url": "https://www.ruby-lang.org/en/news/2019/10/01/http-response-splitting-in-webrick-cve-2019-16254", "reference_id": "", "reference_type": "", "scores": [ { "value": "6.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://www.ruby-lang.org/en/news/2019/10/01/http-response-splitting-in-webrick-cve-2019-16254" }, { "reference_url": "https://bugzilla.redhat.com/show_bug.cgi?id=1816187", "reference_id": "1816187", "reference_type": "", "scores": [], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1816187" }, { "reference_url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=952766", "reference_id": "952766", "reference_type": "", "scores": [], "url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=952766" }, { "reference_url": "https://github.com/advisories/GHSA-84j7-475p-hp8v", "reference_id": "GHSA-84j7-475p-hp8v", "reference_type": "", "scores": [ { "value": "MODERATE", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" } ], "url": "https://github.com/advisories/GHSA-84j7-475p-hp8v" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/568873?format=api", "purl": "pkg:gem/gitlab-puma@4.3.3", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:gem/gitlab-puma@4.3.3" } ], "aliases": [ "CVE-2020-5247", "GHSA-84j7-475p-hp8v" ], "risk_score": 3.1, "exploitability": "0.5", "weighted_severity": "6.2", "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-pr2m-wx1b-hqbz" }, { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/50577?format=api", "vulnerability_id": "VCID-tsrb-zgtb-8ybu", "summary": "## Keepalive thread overload/DoS\n\n### Impact\n\nA poorly-behaved client could use keepalive requests to monopolize Puma's reactor and create a denial of service attack.\n\nIf more keepalive connections to Puma are opened than there are threads available, additional connections will wait permanently if the attacker sends requests frequently enough.\n\n### Patches\n\nThis vulnerability is patched in Puma 4.3.1 and 3.12.2.\n\n### Workarounds\n\nReverse proxies in front of Puma could be configured to always allow less than X keepalive connections to a Puma cluster or process, where X is the number of threads configured in Puma's thread pool.\n\n### For more information\n\nIf you have any questions or comments about this advisory:\n\n* Open an issue at [puma](github.com/puma/puma).", "references": [ { "reference_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-16770.json", "reference_id": "", "reference_type": "", "scores": [ { "value": "7.5", "scoring_system": "cvssv3", 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"generic_textual", "scoring_elements": "" } ], "url": "https://lists.debian.org/debian-lts-announce/2022/05/msg00034.html" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2019-16770", "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": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-16770" }, { "reference_url": "https://bugzilla.redhat.com/show_bug.cgi?id=1831297", "reference_id": "1831297", "reference_type": "", "scores": [], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1831297" }, { "reference_url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=946312", "reference_id": "946312", "reference_type": "", "scores": [], "url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=946312" } ], "fixed_packages": [ { "url": 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