{"id":"CVE-2025-32431","aliases":["EUVD-2025-12231","GHSA-6p68-w45g-48j7","GO-2025-3634","openSUSE-SU-2025:15017-1","openSUSE-SU-2025:15305-1"],"status":"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.","severity":{"version":"4.0","score":8.8,"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","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00945,"percentile":0.61508,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-22"],"published":"2025-04-21T15:34:04Z","modified":"2026-10-28T02:30:47Z","fixes":[{"ecosystem":"Go","package":"github.com/traefik/traefik/v2","fixed_in":["2.11.23"],"sources":["ghsa","osv"]},{"ecosystem":"Go","package":"github.com/traefik/traefik/v3","fixed_in":["3.3.6","3.4.0-rc2"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Go","package":"github.com/traefik/traefik","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"1.7.34"}]}]},{"source":"ghsa","ecosystem":"Go","package":"github.com/traefik/traefik/v2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.11.23"}]}]},{"source":"ghsa","ecosystem":"Go","package":"github.com/traefik/traefik/v3","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.3.6"}]}]},{"source":"ghsa","ecosystem":"Go","package":"github.com/traefik/traefik/v3","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.4.0-rc1"},{"last_affected":"3.4.0-rc1"},{"fixed":"3.4.0-rc2"}]}],"versions":["3.4.0-rc1"]},{"source":"osv","ecosystem":"Go","package":"github.com/traefik/traefik","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"last_affected":"1.7.34"}]}]},{"source":"osv","ecosystem":"Go","package":"github.com/traefik/traefik/v2","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2.11.23"}]}]},{"source":"osv","ecosystem":"Go","package":"github.com/traefik/traefik/v3","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"3.3.6"}]}]},{"source":"osv","ecosystem":"Go","package":"github.com/traefik/traefik/v3","ranges":[{"type":"SEMVER","events":[{"introduced":"3.4.0-rc1"},{"fixed":"3.4.0-rc2"}]}],"versions":["3.4.0-rc1"]},{"source":"osv","ecosystem":"Go","package":"github.com/traefik/traefik","ranges":[{"type":"SEMVER","events":[{"introduced":"0"}]}]},{"source":"osv","ecosystem":"Go","package":"github.com/traefik/traefik/v2","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2.11.23"}]}]},{"source":"osv","ecosystem":"Go","package":"github.com/traefik/traefik/v3","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"3.3.6"},{"introduced":"3.4.0-rc1"},{"fixed":"3.4.0-rc2"}]}]},{"source":"osv","ecosystem":"openSUSE:Tumbleweed","package":"govulncheck-vulndb","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.0.20250422T181640-1.1"}]}],"bundled":23},{"source":"osv","ecosystem":"openSUSE:Tumbleweed","package":"traefik2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.11.26-1.1"}]}],"bundled":9}],"products":[{"vendor":"traefik","product":"traefik"}],"references":[{"url":"https://github.com/traefik/traefik/security/advisories/GHSA-6p68-w45g-48j7","tags":["x_refsource_CONFIRM","Patch","Vendor Advisory","advisory","web"]},{"url":"https://github.com/traefik/traefik/pull/11684","tags":["x_refsource_MISC","Patch","fix","web"]},{"url":"https://github.com/traefik/traefik/releases/tag/v2.11.24","tags":["x_refsource_MISC","Release Notes","web"]},{"url":"https://github.com/traefik/traefik/releases/tag/v3.3.6","tags":["x_refsource_MISC","Release Notes","web"]},{"url":"https://github.com/traefik/traefik/releases/tag/v3.4.0-rc2","tags":["x_refsource_MISC","Release Notes","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-32431","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-6p68-w45g-48j7"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/32xxx/CVE-2025-32431.json","tags":["advisory"]},{"url":"https://github.com/traefik/traefik","tags":["package"]},{"url":"https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/XCF7AZBKQYAQXK32J6F54H6NREFBK2V7/","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2019-15119","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-1386","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-2424","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-24358","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-2475","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-24839","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-24866","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-2564","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-27538","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-27571","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-27936","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-30206","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-31363","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-32093","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-32431","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-32445","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-32793","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-32963","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-3801","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-43970","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-43971","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-43972","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-43973","tags":["web"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2024-28180","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2024-45338","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-22868","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-22869","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-22871","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-22872","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-27144","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-47952","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2025-32431","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.","status":"published","published":"2025-04-21T15:34:04.637Z","modified":"2025-04-21T15:55:15.087Z","cvss":[{"version":"4.0","score":8.8,"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","level":"high","assessor":"cna"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T14:32:46.109993Z"}],"euvd":[{"id":"EUVD-2025-12231","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.","status":"published","published":"2025-04-21T15:34:04Z","modified":"2025-04-21T15:55:15Z","cvss":[{"version":"4.0","score":8.8,"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","level":"high"}],"updated_at":"2026-11-02T20:52:18.13258Z"}],"ghsa":[{"id":"GHSA-6p68-w45g-48j7","title":"Traefik has a possible vulnerability with its path matchers","description":"## Impact\n\nThere is a potential vulnerability in Traefik managing the requests using a `PathPrefix`, `Path` or `PathRegex` matcher.\n\nWhen 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.\n\n## Example\n\n```yaml\napiVersion: traefik.io/v1alpha1\nkind: IngressRoute\nmetadata:\n  name: my-service\nspec:\n  routes:\n    - match: PathPrefix(‘/service’)\n      kind: Rule\n      services:\n        - name: service-a\n          port: 8080\n      middlewares:\n        - name: my-middleware-a\n    - match: PathPrefix(‘/service/sub-path’)\n      kind: Rule\n      services:\n        - name: service-a\n          port: 8080\n```\n\nIn such a case, the request `http://mydomain.example.com/service/sub-path/../other-path` will reach the backend `my-service-a` without operating the middleware `my-middleware-a` unless the computed path is `http://mydomain.example.com/service/other-path` and should be computes by the first router (operating `my-middleware-a`).\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\n\n## Workaround\n\nAdd a `PathRegexp` rule to the matcher to prevent matching a route with a `/../` in the path.\n\nExample: \n\n```yaml\nmatch: PathPrefix(`/service`) \u0026\u0026 !PathRegexp(`(?:(/\\.\\./)+.*)`)\n```\n\n## For more information\n\nIf you have any questions or comments about this advisory, please [open an issue](https://github.com/traefik/traefik/issues).","status":"published","published":"2025-04-21T16:17:38Z","modified":"2025-11-27T08:03:35Z","cvss":[{"version":"4.0","score":8.8,"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","level":"high"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T14:39:10.178331Z"}],"nvd":[{"id":"CVE-2025-32431","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.","status":"published","published":"2025-04-21T16:15:54.61Z","modified":"2026-06-17T09:11:58.89Z","cvss":[{"version":"4.0","score":8.8,"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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high","assessor":"secondary"},{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"critical","assessor":"primary"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T14:11:01.507281Z"}],"osv":[{"id":"CVE-2025-32431","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.","status":"published","published":"2025-04-21T15:34:04.637Z","modified":"2026-10-28T02:30:47.568815667Z","cvss":[{"version":"4.0","score":8.8,"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","level":"high"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T15:44:48.02508Z"},{"id":"GHSA-6p68-w45g-48j7","title":"Traefik has a possible vulnerability with its path matchers","description":"## Impact\n\nThere is a potential vulnerability in Traefik managing the requests using a `PathPrefix`, `Path` or `PathRegex` matcher.\n\nWhen 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.\n\n## Example\n\n```yaml\napiVersion: traefik.io/v1alpha1\nkind: IngressRoute\nmetadata:\n  name: my-service\nspec:\n  routes:\n    - match: PathPrefix(‘/service’)\n      kind: Rule\n      services:\n        - name: service-a\n          port: 8080\n      middlewares:\n        - name: my-middleware-a\n    - match: PathPrefix(‘/service/sub-path’)\n      kind: Rule\n      services:\n        - name: service-a\n          port: 8080\n```\n\nIn such a case, the request `http://mydomain.example.com/service/sub-path/../other-path` will reach the backend `my-service-a` without operating the middleware `my-middleware-a` unless the computed path is `http://mydomain.example.com/service/other-path` and should be computes by the first router (operating `my-middleware-a`).\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\n\n## Workaround\n\nAdd a `PathRegexp` rule to the matcher to prevent matching a route with a `/../` in the path.\n\nExample: \n\n```yaml\nmatch: PathPrefix(`/service`) \u0026\u0026 !PathRegexp(`(?:(/\\.\\./)+.*)`)\n```\n\n## For more information\n\nIf you have any questions or comments about this advisory, please [open an issue](https://github.com/traefik/traefik/issues).","status":"published","published":"2025-04-21T16:17:38Z","modified":"2025-11-27T08:34:01.288816Z","cvss":[{"version":"4.0","score":8.8,"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","level":"high"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T15:46:39.965326Z"},{"id":"GO-2025-3634","title":"Traefik has a possible vulnerability with the path matchers in github.com/traefik/traefik","description":"Traefik has a possible vulnerability with the path matchers in github.com/traefik/traefik","status":"published","published":"2025-04-22T18:14:45Z","modified":"2026-03-03T04:56:30.468018Z","updated_at":"2026-11-02T15:47:01.728182Z"},{"id":"openSUSE-SU-2025:15017-1","title":"govulncheck-vulndb-0.0.20250422T181640-1.1 on GA media","description":"These are all security issues fixed in the govulncheck-vulndb-0.0.20250422T181640-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2025-04-23T00:00:00Z","modified":"2026-02-04T02:34:16.37387Z","updated_at":"2026-11-02T16:58:37.399567Z"},{"id":"openSUSE-SU-2025:15305-1","title":"traefik2-2.11.26-1.1 on GA media","description":"These are all security issues fixed in the traefik2-2.11.26-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2025-07-03T00:00:00Z","modified":"2026-03-23T04:53:37.600926Z","updated_at":"2026-11-02T16:58:37.810934Z"}]}}