Vulnerability · Published Oct 22, 2026 · Assigned by VulnCheck

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

High 8.7

In plain English

A high-severity missing authentication in traefik from traefik. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 16% of all known vulnerabilities).

Severity (CVSS 3.1)8.7High

Exploit odds (30 days)0.2%top 84.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

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.

Affected products (as reported)

Vendor	Product	Versions
traefik	traefik	3.7.13 – before 3.7.14

Weakness: CWE-306 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N

References

GitHub Security Advisory (GHSA-qvj7-gq9c-hp7q) vendor-advisory
VulnCheck Advisory: Traefik v3.7.13 Authentication Bypass via ssl-passthrough Ingress HTTP Router third-party-advisory