CVE-2026-26998: Allocation of Resources Without Limits or Throttling

Traefik is an HTTP reverse proxy and load balancer. Prior to versions 2.11.38 and 3.6.9, there is a potential vulnerability in Traefik managing the ForwardAuth middleware responses. When Traefik is configured to use the ForwardAuth middleware, the response body from the authentication server is...

GHSA-FW45-F5Q2-2P4X Traefik has unbounded io.ReadAll on auth server response body that causes OOM DOS

Impact There is a potential vulnerability in Traefik managing the ForwardAuth middleware responses. When Traefik is configured to use the ForwardAuth middleware, the response body from the authentication server is read entirely into memory without any size limit. There is no maxResponseBodySize...

Traefik has unbounded io.ReadAll on auth server response body that causes OOM DOS

Impact There is a potential vulnerability in Traefik managing the ForwardAuth middleware responses. When Traefik is configured to use the ForwardAuth middleware, the response body from the authentication server is read entirely into memory without any size limit. There is no maxResponseBodySize...

PT-2026-23083

Name of the Vulnerable Software and Affected Versions Traefik versions prior to 2.11.38 and 3.6.9 Description Traefik, an HTTP reverse proxy and load balancer, has a potential issue in how it manages responses from the ForwardAuth middleware. When configured to use ForwardAuth, the response body...