Just reproduced sshole (CVE-2026-123158), beautifully simple bug by
@kultekin
Needs password auth on and no PAM, but you can ssh as root into an unpatched Alpine box with any 257+ byte password.
musl crypt() returns "*" for any password over 256 bytes. a locked account's shadow field is also "*". sshd compares them and they match.
fix: openssh 10.6p2