CVE-2026-59851

CVE-2026-59851CVE-2026-59851

Description

A flaw was found in libssh. On servers with GSSAPIKeyExchange enabled, the gssapi-keyex path does not verify whether the authenticated Kerberos principal is authorized for the requested local user, allowing authenticated clients to log in as arbitrary users.

Scoring

CVSS 8.8 ()
VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Last modified2026-07-21
Sourced from NVD. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.