CVE-2026-48859 SSH server timing side-channel in ssh_auth:check_password/3 allows unauthenticated username enumeration

Observable Timing Discrepancy vulnerability in Erlang/OTP ssh sshauth, sshoptions modules allows unauthenticated remote username enumeration via timing side-channel in password authentication. When the SSH daemon is configured with the userpasswords or password option, sshauth:checkpassword/3...