Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2026-114637

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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 22.5%
CVSS Severity
CVSS v3 Score 8.7
Products affected by CVE-2026-114637


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