A mutter bugfix update has been released for CentOS 7.

CentOS-announce: CEBA-2020:5048 CentOS 7 mutter BugFix Update

CentOS Errata and Bugfix Advisory 2020:5048

Upstream details at :   https://access.redhat.com/errata/RHBA-2020:5048

The following updated files have been uploaded and are currently
syncing to the mirrors: ( sha256sum Filename )

x86_64:
5cc00750206f4e78afabfb9b056e174bae1ac30245373825f150d87b55a7c6ab mutter-3.28.3-28.el7.i686.rpm
72872ee299214c68c0fb449a111ab5178f764ab24db86850448332c6b4fb7cfc mutter-3.28.3-28.el7.x86_64.rpm
7e5b27fb6123ab5f0cdd5f923b6c4f144c4cff9c981c132969b3026427a32a17 mutter-devel-3.28.3-28.el7.i686.rpm
d4f08989f469c8c654a2986c6fe6f0f1f7bb38bec3e1445f93c1df505f92d04a mutter-devel-3.28.3-28.el7.x86_64.rpm

Source:
d3c3c393c0128918f294169a4100e179086fe6a9ca9356ce00875739a3875769 mutter-3.28.3-28.el7.src.rpm