Vulnerability 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 Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Traefik | Traefik | < 2.11.24 |
Related Weaknesses (CWE)
References
- https://github.com/traefik/traefik/pull/11684Patch
- https://github.com/traefik/traefik/releases/tag/v2.11.24Release Notes
- https://github.com/traefik/traefik/releases/tag/v3.3.6Release Notes
- https://github.com/traefik/traefik/releases/tag/v3.4.0-rc2Release Notes
- https://github.com/traefik/traefik/security/advisories/GHSA-6p68-w45g-48j7PatchVendor Advisory
FAQ
What is CVE-2025-32431?
CVE-2025-32431 is a vulnerability with a CVSS score of 9.1 (CRITICAL). 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...
How severe is CVE-2025-32431?
CVE-2025-32431 has been rated CRITICAL with a CVSS base score of 9.1/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2025-32431?
Check the references section above for vendor advisories and patch information. Affected products include: Traefik Traefik.