MEDIUM 6.3 NVD
CVE-2026-114641
Traefik 2.11.x before 2.11.58 and 3.x before 3.7.14 contains a race condition in NTLM and Kerberos (Negotiate) backend authentication, where the per-connection
Traefik 2.11.x before 2.11.58 and 3.x before 3.7.14 contains a race condition in NTLM and Kerberos (Negotiate) backend authentication, where the per-connection sticky round tripper slot is read and written without synchronization. Remote attackers can send concurrent HTTP/2 or HTTP/3 requests over one connection to orphan backend connections, break connection-bound authentication, or crash Traefik.
References
- https://github.com/traefik/traefik/security/advisories/GHSA-mhjw-hmjv-p99x
- https://www.vulncheck.com/advisories/traefik-before-2.11.58-and-3.7.14-race-condition-in-n
This medium severity vulnerability with a CVSS score of 6.3 was published on 2026-10-22 via NVD.
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