{"cve":"CVE-2025-32431","nvd":{"published":"2025-04-21T16:15:54.610","modified":"2026-06-17T09:11:58.890","status":"Analyzed","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.","cvss_v4":{"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","score":8.8},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","score":9.1},"cwes":["CWE-22"],"references":["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","https://github.com/traefik/traefik/security/advisories/GHSA-6p68-w45g-48j7"],"products":["traefik:traefik"],"source":"nvd","synced_at":"2026-10-19T22:01:11.054312287+00:00"},"epss":{"cve":"CVE-2025-32431","score":0.00945,"percentile":0.61095,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-6p68-w45g-48j7","url":"https://osv.dev/vulnerability/GHSA-6p68-w45g-48j7","summary":"Traefik has a possible vulnerability with its path matchers","modified":"2025-11-27T08:34:01.288816Z","packages":[{"ecosystem":"Go","name":"github.com/traefik/traefik","purl":"pkg:golang/github.com/traefik/traefik","ranges":["<=1.7.34"],"fixed":[]},{"ecosystem":"Go","name":"github.com/traefik/traefik/v2","purl":"pkg:golang/github.com/traefik/traefik/v2","ranges":["<2.11.23"],"fixed":["2.11.23"]},{"ecosystem":"Go","name":"github.com/traefik/traefik/v3","purl":"pkg:golang/github.com/traefik/traefik/v3","ranges":["<3.3.6"],"fixed":["3.3.6"]},{"ecosystem":"Go","name":"github.com/traefik/traefik/v3","purl":"pkg:golang/github.com/traefik/traefik/v3","ranges":[">=3.4.0-rc1 <3.4.0-rc2"],"fixed":["3.4.0-rc2"]}]},{"id":"GO-2025-3634","url":"https://osv.dev/vulnerability/GO-2025-3634","summary":"Traefik has a possible vulnerability with the path matchers in github.com/traefik/traefik","modified":"2026-03-03T04:56:30.468018Z","packages":[{"ecosystem":"Go","name":"github.com/traefik/traefik","purl":"pkg:golang/github.com/traefik/traefik","ranges":["all versions"],"fixed":[]},{"ecosystem":"Go","name":"github.com/traefik/traefik/v2","purl":"pkg:golang/github.com/traefik/traefik/v2","ranges":["<2.11.23"],"fixed":["2.11.23"]},{"ecosystem":"Go","name":"github.com/traefik/traefik/v3","purl":"pkg:golang/github.com/traefik/traefik/v3","ranges":["<3.3.6",">=3.4.0-rc1 <3.4.0-rc2"],"fixed":["3.3.6","3.4.0-rc2"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}