CVE-2025-47952

Description

Traefik (pronounced traffic) is an HTTP reverse proxy and load balancer. Prior to versions 2.11.25 and 3.4.1, 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 URL encoded string 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 2.11.25 and 3.4.1.

Reserved 2025-05-14 | Published 2025-05-30 | Updated 2025-05-30 | Assigner GitHub_M

Problem types

CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Product status

< 3.4.1
affected

< 2.11.25
affected

References

github.com/...raefik/security/advisories/GHSA-vrch-868g-9jx5

github.com/...ommit/08d5dfee0164aa54dd44a467870042e18e8d3f00

github.com/traefik/traefik/releases/tag/v2.11.25

github.com/traefik/traefik/releases/tag/v3.4.1

cve.org (CVE-2025-47952)

nvd.nist.gov (CVE-2025-47952)

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