More information about this security flaw is available in the following bug: https://bugzilla.redhat.com/show_bug.cgi?id=2296854 Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
The rapidjson library include in mysql8.0 is based on commit 06d58b9e848c650114556a23294d0b6440078c61. This version already contains the fix of this issue. Closing this bug as not a bug to reflect the above.