CVE-2026-121966
8.7 HIGHpublic exploit availablePublished 2026-11-04 · Updated 2026-11-04
AI analysis for this CVE has not been generated yet. Raw NVD data is shown below.
NVD description
Traefik 2.x before 2.11.60 and 3.x before 3.7.16 sends ForwardAuth subrequests (and, in 3.7, Ingress NGINX auth-url requests) through an auth-server connection pool shared by all clients, exposing connection-bound NTLM or Negotiate authentication. An unauthenticated attacker can reuse another user's authenticated connection, receiving the victim's identity via authResponseHeaders to access backends as that user.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N
Weaknesses
CWE-488
Public exploit & PoC references
All references
Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.
Related CVEs
- MEDIUMCVE-2026-103544PoC
- MEDIUMCVE-2026-103868
- MEDIUMCVE-2026-103869
- UNSCOREDCVE-2026-112921PoC
- HIGHCVE-2026-114637PoC
- HIGHCVE-2026-115419PoC
- UNSCOREDCVE-2026-120634PoC
- LOWCVE-2026-122233PoC
Related by shared AI tags and CWE weakness class. Browse the full archive.