A xorg-x11-server security update has been released for CentOS 7.

CESA-2022:5905 Important CentOS 7 xorg-x11-server Security Update

CentOS Errata and Security Advisory 2022:5905 Important

Upstream details at :   https://access.redhat.com/errata/RHSA-2022:5905

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

x86_64:
9d2caa5bdf17716a2d9e2503e5e5490dd97a317659eb35ed3ee294d10b9132be xorg-x11-server-common-1.20.4-18.el7_9.x86_64.rpm
4ce199f03c4016f4eb22b3d9b8711e1cb1d9864540849b2a5a1c4df4ee5552eb xorg-x11-server-devel-1.20.4-18.el7_9.i686.rpm
1224b4daf58dc2c0d85e8536fe7e439c784d857c15e654ad9c5600780755947e xorg-x11-server-devel-1.20.4-18.el7_9.x86_64.rpm
84f175bef4d2561cae46398abd9317955cdbe6a2c0352227323da35cedc29948 xorg-x11-server-source-1.20.4-18.el7_9.noarch.rpm
ef867ce0d361ef3e0350fa0128a70e322998b6b6c0ed8efaf0a06ff011e132c8 xorg-x11-server-Xdmx-1.20.4-18.el7_9.x86_64.rpm
db91ac87e5096fe4cf5cd292f4692633d26bdafb9ceefc8288141677f62626ca xorg-x11-server-Xephyr-1.20.4-18.el7_9.x86_64.rpm
98dba21e88ff7d380ddbbdde2d2aa47ccf7bc6da63c4ae460dab25788449a87e xorg-x11-server-Xnest-1.20.4-18.el7_9.x86_64.rpm
a88474ca9c7184610d2381b4f56de6ecd823c02da9266a63a5ba57230c0ae64d xorg-x11-server-Xorg-1.20.4-18.el7_9.x86_64.rpm
bbe6a456297232dde9056eadfd3e0082764eea1606419c384a0779b6951f9ae7 xorg-x11-server-Xvfb-1.20.4-18.el7_9.x86_64.rpm
ead119fe47b9382012e61124387aa69dfe644f344ccdfad3b91a64e1ab35f467 xorg-x11-server-Xwayland-1.20.4-18.el7_9.x86_64.rpm

Source:
e3a82d200b388e1cd8bb191f92f325b73618b3f19c95a48bed2a71fca3e60065 xorg-x11-server-1.20.4-18.el7_9.src.rpm