CVE-2026-59851
CVE-2026-59851 · Libssh: libssh: authentication bypass via missing gssapi principal check
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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.
CVSS 8.8 · High · EPSS 0.5% · Fix available
- Published
- Updated
Stack: system
Affected products and versions
red hat enterprise linux 10
- Versions
- ≥ 0:0.12.0-3.el10_2: Not affected (rpm)
No fix published
red hat hardened images
- Versions
- ≥ 0.12.1-4.hum1: Not affected (rpm)
No fix published
red hat enterprise linux 8
No fix published
red hat enterprise linux 9
No fix published
libssh Debian:14
- Versions
- 0.11.2-1
- 0.11.3-1
- 0.12.0-1
- 0.12.0-2
- 0.12.0-3
- Affected ranges
- ECOSYSTEM: < 0.12.1-1
Update to 0.12.1-1