webkitgtk4 is vulnerable to information disclosure. The vulnerability exists through the lack of validation, causing a race condition condition that allows reading of restricted memory.
access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/7.9_release_notes/index
access.redhat.com/errata/RHSA-2020:4035
access.redhat.com/security/updates/classification/#moderate
support.apple.com/HT211101
support.apple.com/HT211102
support.apple.com/HT211104
support.apple.com/HT211105
support.apple.com/HT211106
support.apple.com/HT211107