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

CESA-2022:0003 Important CentOS 7 xorg-x11-server Security Update

CentOS Errata and Security Advisory 2022:0003 Important

Upstream details at :   https://access.redhat.com/errata/RHSA-2022:0003

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

x86_64:
99b661c96e07cf126304451e9aa41291a49a8f3fc0d29d14dabcfb939072586f xorg-x11-server-common-1.20.4-17.el7_9.x86_64.rpm
c9dc78f6c0e94a26844ea7d1aa7fbde598ea704957ae7b657c4a63c822bd9f21 xorg-x11-server-devel-1.20.4-17.el7_9.i686.rpm
e58d4578833550c574d220588395dd2ff7fdabaa1bd5e48a04c31911a6caca8a xorg-x11-server-devel-1.20.4-17.el7_9.x86_64.rpm
1c3887c7641e7d177a4556fa5d66b74cca92bdb865265509120154804c5ddeab xorg-x11-server-source-1.20.4-17.el7_9.noarch.rpm
2bfd2b5c14b17c0e7510240064a110b33c36b377955ad7f1245005118f4dc0aa xorg-x11-server-Xdmx-1.20.4-17.el7_9.x86_64.rpm
5ef15604ff8baa8611a443eb38e948c0561633200d60d93d6ec70aafe375876e xorg-x11-server-Xephyr-1.20.4-17.el7_9.x86_64.rpm
822adbeedf758cb1febec29ff177d207923b6e3c24749077ca4f3a684d593d1c xorg-x11-server-Xnest-1.20.4-17.el7_9.x86_64.rpm
d222b43a6c9a83d63e9c529e8e528b248aa0f77b4b23e5e7256d32c1a64bee44 xorg-x11-server-Xorg-1.20.4-17.el7_9.x86_64.rpm
de6d7edb575cf2c912b54349020bb0c64b19b18869c865f5da30ef088e3cad85 xorg-x11-server-Xvfb-1.20.4-17.el7_9.x86_64.rpm
0e2842a9ef72de0a39b188244266ec36bb5efee89dbbb26d2d9b8832fdb44b78 xorg-x11-server-Xwayland-1.20.4-17.el7_9.x86_64.rpm

Source:
aa1a69ecf74614ebb737bde9186deba20abe9762fb94a74fb703cdbd4d750eb1 xorg-x11-server-1.20.4-17.el7_9.src.rpm