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GO-2026-6455
Traefik: ForwardAuth identity spoofing via dot-form header alias in github.com/traefik/traefik
Quick fix
GO-2026-6455 — github.com/traefik/traefik/v2: upgrade to the fixed version with the command below.
go get github.com/traefik/traefik/v2@v2.11.56Details
Traefik: ForwardAuth identity spoofing via dot-form header alias in github.com/traefik/traefik
Are you affected?
Enter the version of the package you're using.
Affected packages
Go/github.com/traefik/traefik
Introduced in:
0No fixed version published yet for github.com/traefik/traefik (go modules). Pin to a known-safe version or switch to an alternative.
Go/github.com/traefik/traefik/v2
Introduced in:
0Fixed in: 2.11.56Fix
go get github.com/traefik/traefik/v2@v2.11.56Go/github.com/traefik/traefik/v3
Introduced in:
3.0.0Fixed in: 3.7.12Fix
go get github.com/traefik/traefik/v3@v3.7.12References
- https://github.com/traefik/traefik/security/advisories/GHSA-rf44-j88r-hh8c[ADVISORY]
- https://nvd.nist.gov/vuln/detail/CVE-2026-88011[ADVISORY]
- https://github.com/traefik/traefik/commit/0331801c72329e0eaeb850e53ccce87c57fbecf8[FIX]
- https://github.com/traefik/traefik/pull/13720[FIX]
- https://github.com/traefik/traefik/releases/tag/v2.11.56[WEB]
- https://github.com/traefik/traefik/releases/tag/v3.7.12[WEB]