A zlib security update has been released for CentOS 7.

CESA-2023:1095 Moderate CentOS 7 zlib Security Update

CentOS Errata and Security Advisory 2023:1095 Moderate

Upstream details at :   https://access.redhat.com/errata/RHSA-2023:1095

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

x86_64:
b960b52aab1348559908af3d4bae59cf32f1543cfd052b3e2d9fcd3edcfd2353 minizip-1.2.7-21.el7_9.i686.rpm
656525e1205096365c3f08ea7899826e736d536330910a13a0d12adff683e362 minizip-1.2.7-21.el7_9.x86_64.rpm
2cb819274f11f736ace2eed931cc816e6c1833a96ebefa661cf5f185432be991 minizip-devel-1.2.7-21.el7_9.i686.rpm
16a8541fcf4b2cd339c282e65bbae76ff488caf5eed0840a759841b6e56ff912 minizip-devel-1.2.7-21.el7_9.x86_64.rpm
05ce97f826afdba77bdbabde3175ee402acbf40771f2af0a35ada58f14c7ecbc zlib-1.2.7-21.el7_9.i686.rpm
2bee86d12902723756eafa82ba6cc322136c4a67a78e0104ac988e14eb7fb5a1 zlib-1.2.7-21.el7_9.x86_64.rpm
b29312cc96f964f3acb2be38bc13b4893aeb1766954bbb95a9d214498a2e4b48 zlib-devel-1.2.7-21.el7_9.i686.rpm
672e68e45c4b7fe8fc13c9120dc86f63a7501b0671c31efd1bc7fca754bcce6f zlib-devel-1.2.7-21.el7_9.x86_64.rpm
f88c4bed9b2d9000b18a7505809eaf38777fe41fd6aeed9b928493c204e4783f zlib-static-1.2.7-21.el7_9.i686.rpm
7d3bfa9dc6bf0bfa9484b2f3613c4816e08534e247194ef466587ccf8938e69e zlib-static-1.2.7-21.el7_9.x86_64.rpm

Source:
706518173d35e91b24ac5eee986d074ba9e200c67f26a9028c2e4c1c9713c13c zlib-1.2.7-21.el7_9.src.rpm