Traefik from v3.7.0 before v3.7.14 contains an authentication bypass vulnerability in its Kubernetes Ingress-NGINX provider that forwards…
Traefik from v3.7.0 before v3.7.14 contains an authentication bypass vulnerability in its Kubernetes Ingress-NGINX provider that forwards client-supplied Ssl-Client-* headers on the plaintext HTTP router. When ssl-redirect is disabled alongside auth-tls-pass-certificate-to-upstream, unauthenticated attackers can send Ssl-Client-Verify: SUCCESS with a chosen certificate subject and issuer to impersonate mTLS identities.
Read at NIST National Vulnerability Database (CVE API 2.0)
- Vendor
- Kubernetes
- Product
- Squid / HAProxy / Varnish, Kubernetes
- CVSS
- 8.7
- EPSS
- 0.002 (p9)
- Exposure class
- Edge / VPN / firewall, Developer platform
Why it ranks 22 (Routine)
- CVSS 8.7 high
- Exposed product class: edge / VPN / firewall
- Recency: items published within 24 hours gain 15, within 72 hours 6, within 7 days 2.
Links
- NIST National Vulnerability Database (CVE API 2.0) (nvd.nist.gov)
- CVE-2026-114640 on this site · NVD · CVE.org · Vulnpedia
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