HIGHCVSS v3.1 8.7Vulnerability
CVE-2026-114639
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.
Properties
- Severity
- HIGH
- Nvd fetched at
- 2026-10-22T22:14:18.200859+00:00
- Epss score
- 0.00311
- Cvss severity
- HIGH
- Cvss score
- 8.7
- Retrieved at
- 2026-10-22T22:17:33+00:00
- Last source
- FIRST EPSS
- Score
- 8.7
- Cvss version
- 3.1
- Cve id
- CVE-2026-114639
- Cvss vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N
- First seen by Signal
- 2026-10-22T06:03:26+00:00
- Vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N
- Published at
- 2026-10-22T02:16:56.800
- Last modified
- 2026-10-22T15:39:30.497
- Epss percentile
- 0.22681
Related Entities (1)
HAS_WEAKNESS (1)
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