Fiche vulnérabilité
CVE-2026-35051 : faille critique traefik traefik (CVSS 10.0)
Description
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.
En bref
- Sévérité
- Critique (CVSS 10.0)
- Vecteur CVSS
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
- Exploitation active
- Non signalée par la CISA
- Publication
- 30 avr. 2026
- Dernière mise à jour
- 15 juil. 2026
Produits concernés
- traefik traefik
Références
- Fiche CVE-2026-35051 sur le NVD (NIST)
- github.com/traefik/traefik/releases/tag/v2.11.43
- github.com/traefik/traefik/releases/tag/v3.6.14
- github.com/traefik/traefik/releases/tag/v3.7.0-rc.2
- github.com/traefik/traefik/security/advisories/GHSA…
- access.redhat.com/errata/RHSA-2026:21772
- access.redhat.com/security/cve/CVE-2026-35051
- bugzilla.redhat.com/show_bug.cgi
- security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-35051.json