CVE-2026-114639 (GCVE-0-2026-114639)

Vulnerability from cvelistv5 – Published: 2026-10-22 01:43 – Updated: 2026-10-22 01:43
VLAI
Title
Traefik before 2.11.58 and 3.7.14 Authentication Bypass via Negotiate Connection Pool
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 with the victim's identity.
Severity
7 (High)
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N
8.7 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N
CWE
  • CWE-287 - Improper Authentication
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6753 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
traefik traefik Affected: 2.11.0 , < 2.11.58 (semver)
Unaffected: 2.11.58 (semver)
guessed Create a notification for this product.
traefik traefik Affected: 3.0.0 , < 3.7.14 (semver)
Unaffected: 3.7.14 (semver)
guessed Create a notification for this product.
Date Public
2026-10-07 00:00
Credits
lyhtheori
Show details on NVD website
To clipboard 

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