HIGHVulnerability
Verified
Global

NVD HIGH: CVE-2026-114639 — Traefik 2.11.0 before 2.11.58 and 3.0.0 before 3.7.14 contains an authentication...

·Source: NIST NVD

Updated:

Executive Summary

Traefik 2.11.0 before 2.11.58 and 3.0.0 before 3.7.14 contains an authentication bypass because a first request preauthenticated with an Authorization: Negotiate token authenticates a socket in the globally shared backend connection pool, which is never isolated. Unauthenticated attackers on separate frontend connections can be assigned that NTLM/Kerberos-bound socket and perform reads or writes w

Analysis

Traefik 2.11.0 before 2.11.58 and 3.0.0 before 3.7.14 contains an authentication bypass because a first request preauthenticated with an Authorization: Negotiate token authenticates a socket in the globally shared backend connection pool, which is never isolated. Unauthenticated attackers on separate frontend connections can be assigned that NTLM/Kerberos-bound socket and perform reads or writes with the victim's identity. CVSS Score: 8.7. Published: 2026-10-22T02:16:56.800.

Indicators of Compromise (1)

CVE (1)
CVE-2026-114639
NVDMITRE CVE
Source Attribution

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

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