CVE-2026-114638High· 8.7▾ TwilightTraefik v3.7.0 before v3.7.14 contains an improper authentication vulnerability in the Kubernetes Ingress NGINX provider that merges client CAs when auth-tls-secret names collide after dot-to-dash normalization. Attackers holding certifi…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 47.8 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.
Exploit-prediction probability, daily snapshots since Oct 23.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.2%
0.2% → 0.2%
Traefik v3.7.0 before v3.7.14 contains an improper authentication vulnerability in the Kubernetes Ingress NGINX provider that merges client CAs when auth-tls-secret names collide after dot-to-dash normalization. Attackers holding certificates from another host's CA can access a host requiring its own client CA, while that host's legitimate clients are refused.
traefik >= 3.7.0 < 3.7.14Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-114639High· 8.7Traefik before 2.11.58 and 3.7.14 Authentication Bypass via Negotiate Connection Pool
CVE-2026-88007Critical· 9.1Traefik is an open source HTTP reverse proxy and load balancer
CVE-2026-85596Critical· 9.8Traefik versions >= v3.7.0 and <= v3.7.10 contain an authentication bypass in the Kubernetes Ingress NGINX provider
CVE-2026-85595Critical· 9.8Traefik versions before v2.11.55 and versions v3.0.0 through v3.7.10 contain an authentication bypass vulnerability in the digestAuth middleware where unknown usernames receive an empty secret instead of rejection
CVE-2026-71326Low· 3.8Traefik is an open source HTTP reverse proxy and load balancer
CVE-2026-114635High· 8.7Traefik before v2.11.58 and v3.7.14 SNI Check Bypass via HTTP/2 Scheme