Vulnerability Monitor

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CVE-2025-47952

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.

Published

2025-05-30T04:15:46.900

Last Modified

2025-11-25T15:10:59.690

Status

Analyzed

Source

[email protected]

Severity

CVSSv3.1: 9.1 (CRITICAL)

Weaknesses
  • Type: Secondary
    CWE-22
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application traefik traefik < 2.11.25 Yes
Application traefik traefik < 3.4.1 Yes
References