Traefik: ForwardAuth trustForwardHeader=false allows spoofed X-Forwarded-Prefix to bypass auth
21Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 7.8epss 0.3%
probabilidad de explotación
0.3%top 81% de las CVE
explotación observada
noninguna fuente lo reporta
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:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:L/SA:N
Productos afectados
traefik · traefikReferencias
https://access.redhat.com/errata/RHSA-2026:21772https://access.redhat.com/security/cve/CVE-2026-35051https://bugzilla.redhat.com/show_bug.cgi?id=2464235https://github.com/traefik/traefik/releases/tag/v2.11.43https://github.com/traefik/traefik/releases/tag/v3.6.14https://github.com/traefik/traefik/releases/tag/v3.7.0-rc.2https://github.com/traefik/traefik/security/advisories/GHSA-6384-m2mw-rf54https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-35051.json