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CVE-2025-32431

CVE-2025-32431 · Traefik has a possible vulnerability with the path matchers

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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 8.8 · High · EPSS 0.9%

Published
Updated

Stack: web

Affected products and versions

  • traefik

    Versions
    • < 2.11.24: Affected
    • < 3.3.6: Affected
    • >= 3.4.0-rc1, < 3.4.0-rc2: Affected

    No fix published

Original sources

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