A thunderbird security update has been released for CentOS 7.

CESA-2023:0600 Important CentOS 7 thunderbird Security Update

CentOS Errata and Security Advisory 2023:0600 Important

Upstream details at :   https://access.redhat.com/errata/RHSA-2023:0600

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

x86_64:
d56ae1d4e0d4b0be63156bddcdb2f72700d55124efafecb654bbb436fd36eca5 thunderbird-102.7.1-2.el7.centos.x86_64.rpm

Source:
ada28b6b49333e3f9a0de597ea818a8c12dda5339d9026143456fff103a3a9a5 thunderbird-102.7.1-2.el7.centos.src.rpm