{"id":"GHSA-5423-jcjm-2gpv","aliases":["GO-2025-3627"],"url":"https://o3.security/vulnerability/GHSA-5423-jcjm-2gpv","summary":"Traefik affected by Go HTTP Request Smuggling Vulnerability","details":"### Summary\nnet/http: request smuggling through invalid chunked data: The net/http package accepts data in the chunked transfer encoding containing an invalid chunk-size line terminated by a bare LF. When used in conjunction with a server or proxy which incorrectly interprets a bare LF in a chunk extension as part of the extension, this could permit request smuggling. [CVE-2025-22871] Vendor Affected Components: Go: 1.23.x < 1.23.8\n\nMore Details: [CVE-2025-22871](https://nvd.nist.gov/vuln/detail/CVE-2025-22871)\n\n## Patches\n\n- https://github.com/traefik/traefik/releases/tag/v2.11.24\n- https://github.com/traefik/traefik/releases/tag/v3.3.6\n- https://github.com/traefik/traefik/releases/tag/v3.4.0-rc2","published":"2025-04-18T19:35:17Z","modified":"2025-04-22T18:57:14.621918Z","cvss":{"score":9.1,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"github.com/traefik/traefik/v2","fixedVersion":"2.11.24"},{"ecosystem":"Go","name":"github.com/traefik/traefik/v3","fixedVersion":"3.3.6"},{"ecosystem":"Go","name":"github.com/traefik/traefik/v3","fixedVersion":"3.4.0-rc2"}],"fix":null,"references":[{"type":"WEB","url":"https://github.com/traefik/traefik/security/advisories/GHSA-5423-jcjm-2gpv"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-22871"},{"type":"PACKAGE","url":"https://github.com/traefik/traefik"},{"type":"WEB","url":"https://github.com/traefik/traefik/releases/tag/v2.11.24"},{"type":"WEB","url":"https://github.com/traefik/traefik/releases/tag/v3.3.6"},{"type":"WEB","url":"https://github.com/traefik/traefik/releases/tag/v3.4.0-rc2"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2025-04-22T18:57:14.621918Z"}}