sshd in OpenSSH before 10.4 does not always honor the minimum authentication delay.
sshd in OpenSSH before 10.4 does not always honor the minimum authentication delay.
openssh security update
Released 2026-10-22 · Red Hat rating Moderate · View on Red Hat →
sshd in OpenSSH before 10.4 does not always honor the minimum authentication delay.
sshd in OpenSSH before 10.4 allows remote attackers to cause a denial of service (resource consumption from excessive authentication attempts) because MaxAuthTries was mishandled for GSSAPIAuthentication.
sshd in OpenSSH before 10.4 has an undocumented security-relevant behavior: GSSAPIStrictAcceptorCheck has no value if the server is in Windows Active Directory.
internal-sftp in sshd in OpenSSH before 10.4 recognizes only the first 9 command-line arguments, which can be important if a later command-line argument would have helped to ensure the intended security properties of an…
In sshd in OpenSSH before 10.5, the restrict keyword (in authorized_keys) was supposed to be applicable to tunnel forwarding but was not.