Bug 2464235 (CVE-2026-35051) - CVE-2026-35051 Traefik: github.com/traefik/traefik: Traefik: Authentication bypass in ForwardAuth middleware
Summary: CVE-2026-35051 Traefik: github.com/traefik/traefik: Traefik: Authentication b...
Keywords:
Status: NEW
Alias: CVE-2026-35051
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-04-30 21:01 UTC by OSIDB Bzimport
Modified: 2026-05-08 12:04 UTC (History)
1 user (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-04-30 21:01:51 UTC 
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.
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