CVE-2026-106553: OpenBSD OpenSSH

Low severity, CVSS 2.2. EPSS: 0.1% chance of exploitation in the next 30 days.

In sshd in OpenSSH before 10.6, credentials can incorrectly persist after failure of a GSSAPIAuthentication authentication attempt.

Affected products

• OpenBSD OpenSSH: before 10.6 (fixed in 10.6)

Published 2026-10-06. Last modified 2026-10-07.