CVE-2026-54764
CVE-2026-54764: 1 tracked advisory record across Red Hat. Compare source-reported impact, fixes and remediation.
Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.
Vendor advisory comparison
Red Hat
1 advisory- Advisory severityMedium5.8
Medium [CVE-2026-54764] Authorization bypass in ForwardAuth middleware via forged X-Forwarded-Port
CVE-2026-54764Source published Source updated
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, derives the X-Forwarded-Port header sent to the authentication service from the original incoming request instead of the sanitized forwarded request. As a result, an unauthenticated remote attacker can inject an X-Forwarded-Proto: https header over a plain HTTP connection and cause Traefik to forward X-Forwarded-Port: 443 to the authentication service, bypassing port-based authorization checks. This issue is fixed in versions v2.11.51, v3.6.22, and v3.7.6. This bypasses port-based authorization checks, potentially granting unauthorized access. Moderate: A flaw in Traefik's ForwardAuth middleware, as used in Red…
- Affected products in this advisory
- Red Hat OpenShift Dev Spaces
- Source-reported affected versions
- < 11.51
- < 6.22
- < 7.6
- Source-reported fixed versions
- 11.51
- 6.22
- Mitigation guidance
- No mitigation guidance extracted; consult the source.
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