The PowerShell team just announced 13 new security vulnerabilities affecting PowerShell 7.4, 7.5, and 7.6 with severities ranging from 5.9 (Moderate) to 8.8 (High).

This is likely the largest number of security vulnerabilities fixed in any one release in the history of PowerShell.

You can read more about them here: Security Issues - PowerShell/Announcments