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CVE-2025-47952

Traefik allows path traversal using url encoding

Published: May 30, 2025Updated: Nov 25, 2025 Sources: CVE List NVD GHSACWE-22
NVD MITRE
9.1CVSSCRITICAL
EPSS Score
0.8%
Top 48.8%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:HA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:NAvailability
None
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Weaknesses

CWE-22

Affected Products

traefiktraefik
On-prem
Networking Infrastructure / load-balancer-proxy
github.com/traefik/traefik/v3GoOSS Libraries
github.com/traefik/traefik/v2GoOSS Libraries
github.com/traefik/traefikGoOSS Libraries
traefikoss-projectNetworking Infrastructureaka traefik enterprise
gopackage-ecosystemOSS Libraries

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Collection
Discovery
View detailed technique mapping

References

https://github.com/traefik/traefik/security/advisories/GHSA-vrch-868g-9jx5
github.com
https://github.com/traefik/traefik/commit/08d5dfee0164aa54dd44a467870042e18e8d3f00
github.com
https://github.com/traefik/traefik/releases/tag/v2.11.25
github.com
and 3 more references View all →

Timeline

Published
May 30, 2025
Last Updated
Nov 25, 2025

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