GO-2026-6211
Traefik: Incomplete fix for CVE-2026-33433 + CVE-2026-39858 cross-cohort: headerField underscore-variant identity spoofing in BasicAuth / DigestAuth / ForwardAuth in github.com/traefik/traefik
At a glance
- Published
- Updated
- CVE
- CVE-2026-54763
- Aliases
- GHSA-x677-9fxg-v5c5
Description
Traefik: Incomplete fix for CVE-2026-33433 + CVE-2026-39858 cross-cohort: headerField underscore-variant identity spoofing in BasicAuth / DigestAuth / ForwardAuth in github.com/traefik/traefik
Affected packages
| Package | Versions |
|---|---|
| Go · github.com/traefik/traefik | introduced 0 |
| Go · github.com/traefik/traefik/v2 | introduced 0, fixed 2.11.51 |
| Go · github.com/traefik/traefik/v3 | introduced 0, fixed 3.6.22, introduced 3.7.0, fixed 3.7.6 |
References
- https://github.com/traefik/traefik/security/advisories/GHSA-x677-9fxg-v5c5 ADVISORY
- https://nvd.nist.gov/vuln/detail/CVE-2026-54763 ADVISORY
- https://github.com/traefik/traefik/commit/108a5264473a2cbc8f12d6d691a3c6553cdf2c1b FIX
- https://github.com/traefik/traefik/pull/13262 FIX
- https://github.com/traefik/traefik/releases/tag/v2.11.51 WEB
- https://github.com/traefik/traefik/releases/tag/v3.6.22 WEB
- https://github.com/traefik/traefik/releases/tag/v3.7.6 WEB
Sources
| Source | Licence |
|---|---|
| OSV.dev | CC-BY 4.0 — Go Vulnerability Database |