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MIAMI (CBSMiami/CNN) - Apple is working on a fix for login security flaw on its new operating system - macOS High Sierra.

The flaw allows anyone to log in without a password. To exploit the vulnerability, someone with access to the computer can type "root" and no password in the Users & Groups section of System Preferences.

This gives root access to the computer -- meaning a person could operate the device as if they were an administrator and could download malicious software or otherwise compromise the computer.

"We are working on a software update to address this issue. In the meantime, setting a root password prevents unauthorized access to your Mac," an Apple spokesperson said in a statement. You can find out how here.

The flaw requires physical access for most people, but could work remotely if the user has Remote Desktop enabled. It's a good idea, as always, to keep your machine in your own possession.

(©2017 CBS Broadcasting Inc. All Rights Reserved. CNN contributed to this report.)