CVE-2026-114636 Traefik v3.7.13 Authentication Bypass via ssl-passthrough Ingress HTTP Router

What is CVE-2026-114636?

CVE-2026-114636 is a high-severity vulnerability in Traefik Traefik, published on 22 Oct 2026.

Official description

Traefik v3.7.13 before v3.7.14 contains an access-control bypass in the Kubernetes Ingress NGINX provider, where the HTTP router generated for ssl-passthrough Ingresses on non-TLS entry points never applies the Ingress's access-control annotations. Unauthenticated attackers reaching the HTTP entry point with the Ingress host can access backends protected by auth-type, auth-url, or whitelist-source-range annotations, with nothing logged.

Weakness: CWE-306

Which versions are affected by CVE-2026-114636?

It affects 1 product.

Products include Traefik Traefik.

How do I fix CVE-2026-114636?

Upgrade to a fixed version.

Is CVE-2026-114636 being exploited?

There is no known exploitation of CVE-2026-114636 in the wild and no public exploit code.

Other vulnerabilities in Traefik Traefik

• CVE-2024-45410 HTTP client can remove the X-Forwarded headers in Traefik Critical 9.8
• CVE-2026-88877 Traefik v3.7.0 Authentication Bypass via from-to-www-redirect Critical 9.3
• CVE-2026-85595 Traefik before v2.11.55 and v3.0.0 through v3.7.10 Authentication Bypass via digestAuth Critical 9.3
• CVE-2026-88007 Traefik HTTP/3 Backend NTLM Connection Reuse Critical 9.1
• CVE-2026-88009 Traefik: Rootless HTTP/1 request-target routes as "/" but is forwarded verbatim, bypassing path-scoped routing, middleware guards and access logging High 8.8

All Traefik Traefik vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• GitHub advisory
• How this page is made

Also known as GHSA-754r-9m79-cq7g, GHSA-qvj7-gq9c-hp7q.