HIGHVulnerability
Verified
Global

NVD HIGH: CVE-2026-114637 — Traefik from v3.2.0 before v3.7.14 contains an authentication bypass vulnerabili...

·Source: NIST NVD

Updated:

Executive Summary

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

Analysis

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. CVSS Score: 8.7. Published: 2026-10-22T02:16:56.503.

Indicators of Compromise (1)

CVE (1)
CVE-2026-114637
NVDMITRE CVE
Source Attribution

Originally published by NIST NVD on Oct 22, 2026. Verified by: NIST.

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