CVE-2026-88879 | Traefik prior 2.11.56/3.7.12 Header Canonicalization improper authentication

September 10, 2026 Yanac

A vulnerability was found in Traefik. It has been rated as critical. This vulnerability affects unknown code of the component Header Canonicalization. This manipulation causes improper authentication.

This vulnerability is handled as CVE-2026-88879. The attack can be initiated remotely. There is not any exploit available.

Upgrading the affected component is advised.VulDB Recent EntriesRead More