What’s Vulnerable › Vulnerabilities
CVE-2026-114636: Traefik v3.7.13 Authentication Bypass via ssl-passthrough Ingress HTTP Router
- Severity: high (CVSS 8.7 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.3% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-10-22 · updated 2026-10-28
- Weakness: CWE-306
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.
Affected products
How to fix
Upgrade to a fixed version: Traefik 3.7.14. Check the vendor advisory for mitigations.
References
- https://github.com/traefik/traefik/security/advisories/GHSA-qvj7-gq9c-hp7q
- https://www.vulncheck.com/advisories/traefik-3.7.13-authentication-bypass-via-ssl-passthrough-ingress-http-router
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