Recommended action window: Monitor and triage in normal cycle
NVD description
Traefik before v2.11.58 and v3.7.14 contains an authentication bypass vulnerability in its SNI check, which is skipped when request TLS state is nil. Unauthenticated clients can send HTTP/2 requests with the :scheme http pseudo-header over TLS on Go 1.27 builds to reach routers requiring client certificates without presenting one.
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
NONE
Momentum
NONE
🚨 Three Traefik flaws affect HTTP routing and access controls. CVE-2026-114640: mTLS spoofing. CVE-2026-114636: authentication bypass. CVE-2026-114635: SNI check bypass. Review affected Ingress configurations and upgrade. 🔎 https://exploitgrid.net