Traefik: ForwardAuth middleware leaks X-Forwarded-Port spoofing via untrusted X-Forwarded-Proto when trustForwardHeader=false in github.com/traefik/traefik
Traefik: ForwardAuth middleware leaks X-Forwarded-Port spoofing via untrusted X-Forwarded-Proto when trustForwardHeader=false in github.com/traefik/traefik
01
describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2026-54764US | medium5.8OT elevated | — | ||
Traefik is an HTTP reverse proxy and load balancer. Prior to v2.11.51, v3.6.22, and v3.7.6, Traefik's ForwardAuth middleware, even when configured with trustForwardHeader: false, d… | ||||
02
references
External citations — patches, advisories, analysis.
- https://github.com/traefik/traefik/commit/7ae92d8c2c10ac04ef5a03df0ed5019ce0f44b2dFIX
- https://github.com/traefik/traefik/pull/13344FIX
- https://github.com/traefik/traefik/releases/tag/v2.11.51WEB
- https://github.com/traefik/traefik/releases/tag/v3.6.22WEB
- https://github.com/traefik/traefik/releases/tag/v3.7.6WEB
- https://github.com/traefik/traefik/security/advisories/GHSA-3q9r-p662-5j8mADVISORY
- https://nvd.nist.gov/vuln/detail/CVE-2026-54764ADVISORY
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