What is CVE-2026-114636?

CVE-2026-114636 is a high-severity vulnerability in Traefik, classified under Missing Authentication for Critical Function. CVSS score: 8.7/10. Published 2026-10-22.

How severe is CVE-2026-114636?

High severity. CVSS v3 base score is 8.7 out of 10.

Auth bypass in Traefik

CVE-2026-114636

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.

Vulnerability class: Broken Authentication

Published 2026-10-22 · last modified 2026-10-22.

CVSS v3 metric

CVSS v3 base score 8.7 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Traefik

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

References

github.com/traefik/traefik/security/advisories/GHSA-qvj7-gq9c-hp7q (vendor-advisory)
www.vulncheck.com/advisories/traefik-3.7.13-authentication-bypass-via-ssl-passt… (third-party-advisory)

Frequently asked questions

What is CVE-2026-114636?: CVE-2026-114636 is a high-severity vulnerability in Traefik, classified under Missing Authentication for Critical Function. CVSS score: 8.7/10. Published 2026-10-22.
How severe is CVE-2026-114636?: High severity. CVSS v3 base score is 8.7 out of 10.