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.
Metrics
Affected Vendors & Products
References
History
Thu, 29 Oct 2026 09:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Thu, 22 Oct 2026 02:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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. | |
| Title | Traefik before 2.11.58 and 3.7.14 Race Condition in NTLM/Kerberos Round Tripper | |
| First Time appeared |
Traefik
Traefik traefik |
|
| Weaknesses | CWE-362 | |
| CPEs | cpe:2.3:a:traefik:traefik:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Traefik
Traefik traefik |
|
| References |
| |
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: VulnCheck
Published: 2026-10-22T01:43:40.663Z
Updated: 2026-10-28T18:58:55.522Z
Reserved: 2026-10-21T21:57:36.197Z
Link: CVE-2026-114641
Updated: 2026-10-28T18:58:51.555Z
Status : Analyzed
Published: 2026-10-22T02:16:57.093
Modified: 2026-10-28T19:17:28.607
Link: CVE-2026-114641
No data.