webkit2gtk is vulnerable to remote code execution. Maliciously crafted web content may violate iframe sandboxing policy. This issue was addressed with improved iframe sandbox enforcement.
lists.fedoraproject.org/archives/list/[email protected]/message/JN6ZOD62CTO54CHTMJTHVEF6R2Y532TJ/
lists.fedoraproject.org/archives/list/[email protected]/message/L3L6ZZOU5JS7E3RFYGLP7UFLXCG7TNLU/
secdb.alpinelinux.org/v3.13/community.yaml
security.gentoo.org/glsa/202104-03
support.apple.com/en-us/HT212146
support.apple.com/en-us/HT212147
support.apple.com/en-us/HT212148
support.apple.com/en-us/HT212149