CVE-2026-35051
CVE-2026-35051 · Traefik: ForwardAuth trustForwardHeader=false allows spoofed X-Forwarded-Prefix to bypass auth
Cette page présente des faits issus de sources publiques. Consultez l’avis original avant toute mise à jour.
Traefik is an HTTP reverse proxy and load balancer. Prior to versions 2.11.43, 3.6.14, and 3.7.0-rc.2, there is an authentication bypass vulnerability in Traefik's ForwardAuth middleware when trustForwardHeader=false is configured and Traefik is deployed behind a trusted upstream proxy. This issue has been patched in versions 2.11.43, 3.6.14, and 3.7.0-rc.2.
CVSS 7.8 · Élevée · EPSS 0,3%
- Publication
- Mise à jour
Pile logicielle: web
Produits et versions concernés
traefik
- Versions du logiciel
- < 2.11.43: Concernée
- >= 3.0.0-beta1, < 3.6.14: Concernée
- >= 3.7.0-ea.1, < 3.7.0-rc.2: Concernée
Aucun correctif publié
Sources originales
- https://github.com/traefik/traefik/security/advisories/GHSA-6384-m2mw-rf54
- https://github.com/traefik/traefik/releases/tag/v2.11.43
- https://github.com/traefik/traefik/releases/tag/v3.6.14
- https://github.com/traefik/traefik/releases/tag/v3.7.0-rc.2
- https://access.redhat.com/security/cve/CVE-2026-35051
- https://bugzilla.redhat.com/show_bug.cgi?id=2464235
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-35051.json
- https://access.redhat.com/errata/RHSA-2026:21772
- https://nvd.nist.gov/vuln/detail/CVE-2026-35051