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Directory Traversal Affecting traefik-3 package, versions <3.4.1-r0

Severity

 Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.03% (8th percentile)

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  • Snyk IDSNYK-MINIMOSLATEST-TRAEFIK3-13312106
  • published6 Oct 2025
  • disclosed30 May 2025
Report a new vulnerability Found a mistake?

Introduced: 30 May 2025

CVE-2025-47952  (opens in a new tab)
CWE-22  (opens in a new tab)

How to fix?

Upgrade Minimos:latest traefik-3 to version 3.4.1-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream traefik-3 package and not the traefik-3 package as distributed by Minimos. See How to fix? for Minimos:latest relevant fixed versions and status.

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.