[CVE-2026-59851] A flaw was found in libssh. On servers with GSSAPIKeyExchange enabled, the gssapi-keyex path does no…

Descripción técnica

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.

Puntuación CVSS

Score: 8.8/10 — Severidad: HIGH — Estado NIST: Analyzed

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Productos afectados

Libssh, Hardened images, Enterprise linux — Libssh, Redhat

Debilidades (CWE)

CWE-863

Fuente oficial

Publicado en NIST NVD.