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CVE-2025-47952
CRITICAL9.1
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 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.
CVE Details
CVSS v3.1 Score9.1
SeverityCRITICAL
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Attack VectorNETWORK
ComplexityLOW
Privileges RequiredNONE
User InteractionNONE
Published5/30/2025
Last Modified11/25/2025
Sourcenvd
Honeypot Sightings0
Affected Products
traefik:traefik
Weaknesses (CWE)
CWE-22
References
https://github.com/traefik/traefik/commit/08d5dfee0164aa54dd44a467870042e18e8d3f00(security-advisories@github.com)
https://github.com/traefik/traefik/releases/tag/v2.11.25(security-advisories@github.com)
https://github.com/traefik/traefik/releases/tag/v3.4.1(security-advisories@github.com)
https://github.com/traefik/traefik/security/advisories/GHSA-vrch-868g-9jx5(security-advisories@github.com)
IOC Correlations
No correlations recorded
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