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CVE-2025-32431
Good to know:
Date: April 21, 2025
Traefik (pronounced traffic) is an HTTP reverse proxy and load balancer. In versions prior to 2.11.24, 3.3.6, and 3.4.0-rc2. 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 /../ 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 2.11.24, 3.3.6, and 3.4.0-rc2. A workaround involves adding a "PathRegexp" rule to the matcher to prevent matching a route with a "/../" in the path.
Severity Score
Related Resources (8)
Severity Score
Weakness Type (CWE)
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-22Top Fix
Upgrade Version
Upgrade to version github.com/traefik/traefik - v2.11.24;github.com/traefik/traefik - v3.3.6;github.com/traefik/traefik - v3.4.0-rc2;github.com/traefik/traefik/v2 - v2.11.23;github.com/traefik/traefik/v3 - v3.3.6;github.com/traefik/traefik/v3 - v3.4.0-rc2
CVSS v3.1
| Base Score: |
|
|---|---|
| Attack Vector (AV): | NETWORK |
| Attack Complexity (AC): | LOW |
| Privileges Required (PR): | NONE |
| User Interaction (UI): | NONE |
| Scope (S): | UNCHANGED |
| Confidentiality (C): | HIGH |
| Integrity (I): | HIGH |
| Availability (A): | NONE |