A log4j security update has been released for CentOS 7.

CESA-2021:5206 Moderate CentOS 7 log4j Security Update

CentOS Errata and Security Advisory 2021:5206 Moderate

Upstream details at :   https://access.redhat.com/errata/RHSA-2021:5206

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