https://www.cnet.com/news/apple-mac-high-sierra-app-store-preferences-login-password-flaw-bug/

Your Mac has another bug that lets people log in without your password. But unlike the last time this happened, it only leaves your computer exposed to a bit of mischief.

That proviso won't stop the bug from raising concerns about the overall quality of Apple's software. But it means the flaw doesn't hand anyone the keys to the kingdom.