Traefik Authentication Bypass via Path Traversal Vulnerability
An early warning has been issued for a path traversal vulnerability in Traefik's ReplacePathRegex middleware, which could allow an unauthenticated remote attacker to bypass authentication and access protected routes.
What happened
Reportedly, a path traversal vulnerability exists in Traefik's ReplacePathRegex middleware that allows an unauthenticated remote attacker to bypass authentication middleware and access protected routes by sending a single crafted HTTP request. This vulnerability appears to affect multiple versions of Traefik, including v2.11.47 to v2.11.52, v3.6.17 to v3.6.23, and v3.7.0 to v3.7.7. To mitigate this vulnerability, it is recommended to upgrade to Traefik v2.11.52, v3.6.23, or v3.7.7. For more details, consult the primary sources listed below.
How 0Day mitigates this
traefik is anywhere in your dependency tree, the engineers who own the affected repositories get a push alert the moment it is flagged — no manual audit to remember to run.Read how this differs from waiting on a scanner to catch a known advisory, or see the exact, read-only access 0Day needs to do this for an organization.