Processing web content may lead to a denial-of-service. The issue was addressed with improved memory handling. WebKit Bugzilla: 263758
Created webkitgtk tracking bugs for this issue: Affects: fedora-all [bug 2274440]
Created webkit2gtk4.0 tracking bugs for this issue: Affects: fedora-rawhide [bug 2274441]
This CVE was created in error. Apple says the underlying bug is not a security issue. Seems like there was some miscommunication between the developer team and their Product Security.