USN-8721-1: OpenSSH vulnerabilities

It was discovered that OpenSSH’s ssh-agent incorrectly handled interactions between agent locking and the session-bind@openssh.com extension. A remote attacker with access to a forwarded agent connection could possibly use this issue to perform operations that should only be available locally, such as adding tokens or using keys. (CVE-2026-73281) It was discovered that OpenSSH’s ssh client incorrectly handled concurrent remote-forwarding operations.