CVE-2026-114637
HIGH
NVD
CVSS Score
8.7
Severity
HIGH
Published
Oct 22, 2026
Vendor
unknown
Description
Traefik from v3.2.0 before v3.7.14 contains an authentication bypass vulnerability in the experimental FastProxy connection pool, which fails to pin NTLM/Negotiate-authenticated backend connections to their frontend connection. Unauthenticated clients can be handed a pooled keep-alive backend connection where a victim completed an NTLM or Negotiate handshake, letting them read victim data and act as that victim.