CVE-2026-114641 — Traefik before 2.11.58 and 3.7.14 Race Condition in NTLM/Kerberos Round Tripper
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 trip…
Published: 2026-10-22 · CVSS: 6.3 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7