Vulnerability in Traefik

CVE-2026-71324

Traefik is an open source HTTP reverse proxy and load balancer. Prior to 2.11.53, 3.6.24, and 3.7.9, Traefik's default HTTP reverse proxy forwards a plain HTTP/2 or HTTP/3 CONNECT request and its body to an HTTP/1.1 upstream through a shar…

Vulnerability class: HTTP Request Smuggling

Affected products

  • Traefik — versions < 2.11.53, >= 3.0.0, < 3.6.24, >= 3.7.0, < 3.7.9

Weakness classification (CWE)

References