openssh: Fix of 4 CVEs

CVE-2026-106555: reset GSSAPI client state before each authentication attempt - CVE-2026-106553: store GSSAPI delegated credentials only after successful GSSAPI authentication - CVE-2026-106583: disallow '$' and '' in command-line user names - CVE-2026-106585: reject compressed packets that...

OpenSSH security vulnerabilities

OpenSSH OpenBSD Secure Shell is a Canadian OpenBSD open source set of connection tools for secure access to remote computers. The tools are an open source implementation of the SSH protocol and support encryption of all transmissions, effectively blocking eavesdropping, connection hijacking, and...