{"id":"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 \u003c 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","aliases":["GO-2025-3627"],"modified":"2025-04-22T18:57:14.621918Z","published":"2025-04-18T19:35:17Z","database_specific":{"github_reviewed_at":"2025-04-18T19:35:17Z","nvd_published_at":null,"cwe_ids":["CWE-1395"],"severity":"CRITICAL","github_reviewed":true},"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"}],"affected":[{"package":{"name":"github.com/traefik/traefik/v2","ecosystem":"Go","purl":"pkg:golang/github.com/traefik/traefik/v2"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2.11.24"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/04/GHSA-5423-jcjm-2gpv/GHSA-5423-jcjm-2gpv.json"}},{"package":{"name":"github.com/traefik/traefik/v3","ecosystem":"Go","purl":"pkg:golang/github.com/traefik/traefik/v3"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"3.3.6"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/04/GHSA-5423-jcjm-2gpv/GHSA-5423-jcjm-2gpv.json"}},{"package":{"name":"github.com/traefik/traefik/v3","ecosystem":"Go","purl":"pkg:golang/github.com/traefik/traefik/v3"},"ranges":[{"type":"SEMVER","events":[{"introduced":"3.4.0-rc1"},{"fixed":"3.4.0-rc2"}]}],"versions":["3.4.0-rc1"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/04/GHSA-5423-jcjm-2gpv/GHSA-5423-jcjm-2gpv.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N"}]}