A pki-core bugfix update has been released for CentOS 7.

CEBA-2021:3804 CentOS 7 pki-core BugFix Update

CentOS Errata and Bugfix Advisory 2021:3804

Upstream details at :   https://access.redhat.com/errata/RHBA-2021:3804

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

x86_64:
45d71f9f39e70560b9d5baa82caf326bdbcb0b135c3f872940bebef466ce91c6 pki-base-10.5.18-17.el7_9.noarch.rpm
b57dcb1aa6d049c9f0206c226dae51fc7047a9bd3a94dd60673d7d58d3e0a2d2 pki-base-java-10.5.18-17.el7_9.noarch.rpm
b38d022364150a6b271f7303931e221b21fa89648ecf7b19689e3aff7f73b9db pki-ca-10.5.18-17.el7_9.noarch.rpm
240e9a52eaeceaf3760066a892aab0f7a74bac5492ba14ced65ddc253119eed6 pki-javadoc-10.5.18-17.el7_9.noarch.rpm
c82b48182722e9c7204fcb4910d9aa25f350db17be47eea64e52281990462ea1 pki-kra-10.5.18-17.el7_9.noarch.rpm
3b6744ba25565e7f93733bc406e01364aff0968d6eb153c58e942635400ed11c pki-server-10.5.18-17.el7_9.noarch.rpm
9b49885bec503dbc2bbb82461da78b854568129c5ea70410fc3d5ba68dd1e97d pki-symkey-10.5.18-17.el7_9.x86_64.rpm
f09a628b0ae728f1bafc53c158926f284c0273e95363412bc951888d30e73e36 pki-tools-10.5.18-17.el7_9.x86_64.rpm

Source:
d927ae0d179b3ef0a5e22ff008b47c277972d4540dfc8b36e96f50e312533efb pki-core-10.5.18-17.el7_9.src.rpm