{"id":"CVE-2025-32431","state":"PUBLISHED","title":"Traefik has a possible vulnerability with the path matchers","description":"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.","publishedAt":"2025-04-21T15:34:04.637Z","updatedAt":"2025-04-21T15:55:15.087Z","severity":{"score":8.8,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:P","source":"GitHub_M"},"assigner":"GitHub_M","products":["traefik traefik"],"affected":[{"vendor":"traefik","product":"traefik","versions":[{"version":"< 2.11.24","status":"affected"},{"version":"< 3.3.6","status":"affected"},{"version":">= 3.4.0-rc1, < 3.4.0-rc2","status":"affected"}]}],"references":["https://github.com/traefik/traefik/security/advisories/GHSA-6p68-w45g-48j7","https://github.com/traefik/traefik/pull/11684","https://github.com/traefik/traefik/releases/tag/v2.11.24","https://github.com/traefik/traefik/releases/tag/v3.3.6","https://github.com/traefik/traefik/releases/tag/v3.4.0-rc2"],"weaknesses":["CWE-22"],"ingestedAt":"2026-10-29T20:08:55.257Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/32xxx/CVE-2025-32431.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2025-32431","state":"PUBLISHED","datePublished":"2025-04-21T15:34:04.637Z","dateUpdated":"2025-04-21T15:55:15.087Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2025-04-08T10:54:58.368Z"},"containers":{"cna":{"title":"Traefik has a possible vulnerability with the path matchers","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"traefik","product":"traefik","versions":[{"version":"< 2.11.24","status":"affected"},{"version":"< 3.3.6","status":"affected"},{"version":">= 3.4.0-rc1, < 3.4.0-rc2","status":"affected"}]}],"references":[{"url":"https://github.com/traefik/traefik/security/advisories/GHSA-6p68-w45g-48j7","name":"https://github.com/traefik/traefik/security/advisories/GHSA-6p68-w45g-48j7","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/traefik/traefik/pull/11684","name":"https://github.com/traefik/traefik/pull/11684","tags":["x_refsource_MISC"]},{"url":"https://github.com/traefik/traefik/releases/tag/v2.11.24","name":"https://github.com/traefik/traefik/releases/tag/v2.11.24","tags":["x_refsource_MISC"]},{"url":"https://github.com/traefik/traefik/releases/tag/v3.3.6","name":"https://github.com/traefik/traefik/releases/tag/v3.3.6","tags":["x_refsource_MISC"]},{"url":"https://github.com/traefik/traefik/releases/tag/v3.4.0-rc2","name":"https://github.com/traefik/traefik/releases/tag/v3.4.0-rc2","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":8.8,"baseSeverity":"HIGH","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:P","version":"4.0"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-22","lang":"en","description":"CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2025-04-21T15:34:04.637Z"},"source":{"advisory":"GHSA-6p68-w45g-48j7","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-04-21T15:55:08.342564Z","id":"CVE-2025-32431","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-04-21T15:55:15.087Z"}}]}}}