CVE-2026-35414: OpenBSD OpenSSH

High severity, CVSS 8.1. EPSS: 0.2% chance of exploitation in the next 30 days.

OpenSSH before 10.3 mishandles the authorized_keys principals option in uncommon scenarios involving a principals list in conjunction with a Certificate Authority that makes certain use of comma characters.

Affected products

• OpenBSD OpenSSH: before 10.3 (fixed in 10.3)

Published 2026-04-02. Last modified 2026-07-24.