PHP has released security updates to address multiple vulnerabilities in PHP. The detailed information about the vulnerabilities can be found at:
https://www.php.net/ChangeLog-8.php
For detailed information of the affected systems, please refer to the corresponding security advisories at vendor's website.
Successful exploitation of the vulnerabilities could lead to security restriction bypass on an affected system.
Patches for affected systems are now available. System administrators of affected systems should follow the recommendations provided by the vendor and take immediate actions to mitigate the risk.
System administrators should contact their product support vendors for the fixes and assistance.