CVE-2026-88011 | Traefik up to 2.11.55/3.7.11 Header Normalization improper authentication

September 10, 2026 Yanac

A vulnerability described as critical has been identified in Traefik up to 2.11.55/3.7.11. This issue affects some unknown processing of the component Header Normalization. The manipulation results in improper authentication.

This vulnerability is known as CVE-2026-88011. It is possible to launch the attack remotely. No exploit is available.

Upgrading the affected component is recommended.VulDB Recent EntriesRead More