{"id":"CVE-2025-32431","aliases":["GHSA-6p68-w45g-48j7","GO-2025-3634"],"url":"https://o3.security/vulnerability/CVE-2025-32431","summary":"Traefik has a possible vulnerability with the path matchers","details":"Traefik (pronounced traffic) is an HTTP reverse proxy and load balancer. In versions prior to 2.11.24, 3.3.6, and 3.4.0-rc2. There is a potential vulnerability in Traefik managing the requests using a PathPrefix, Path or PathRegex matcher. When Traefik is configured to route the requests to a backend using a matcher based on the path, if the URL contains a /../ in its path, it’s possible to target a backend, exposed using another router, by-passing the middlewares chain. This issue has been patched in versions 2.11.24, 3.3.6, and 3.4.0-rc2. A workaround involves adding a `PathRegexp` rule to the matcher to prevent matching a route with a `/../` in the path.","published":"2025-04-21T15:34:04.637Z","modified":"2026-08-08T03:47:53.076234414Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"github.com/traefik/traefik","fixedVersion":null},{"ecosystem":"Go","name":"github.com/traefik/traefik/v2","fixedVersion":"2.11.23"},{"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":{"url":"https://github.com/traefik/traefik/pull/11684","label":"traefik/traefik#11684"},"references":[{"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"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/32xxx/CVE-2025-32431.json"},{"type":"ADVISORY","url":"https://github.com/traefik/traefik/security/advisories/GHSA-6p68-w45g-48j7"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-32431"},{"type":"FIX","url":"https://github.com/traefik/traefik/pull/11684"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-08T03:47:53.076234414Z"}}