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Servers and applications

CVE-2025-47952

Path traversal still possible using url encoding

Severity
Low 2.9
Published
28 May 2025
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
2.11.25, 3.4.1
Also known as
GHSA-vrch-868g-9jx5
Sources
NVD, Project advisories (GitHub)

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…

Affected software

SoftwareAffected versions
TraefikServers and applications · cpe:a:traefik:traefik
  • Every version before 2.11.25
  • From 3.0.0 before 3.4.1
TraefikServers and applications · github:traefik/traefik
  • Every version up to 1.7.34
  • Every version before 2.11.25
  • Every version before 3.4.1

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2025-47952
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2025-47952
  • GitHub Advisory Database https://github.com/advisories/GHSA-vrch-868g-9jx5
  • github.com https://github.com/traefik/traefik/security/advisories/GHSA-vrch-868g-9jx5