A validation issue existed in the handling of symlinks and was addressed with improved validation of symlinks. This issue is fixed in macOS Monterey 12.4. An app may be able to gain elevated privileges.
https://gergelykalman.com/no-CVE-batsignal-a-macos-lpe.html
https://support.apple.com/kb/HT213344
https://support.apple.com/kb/HT213343
https://support.apple.com/en-us/HT213257