A python-rtslib security update has been released for CentOS 7.

CentOS-announce: CESA-2020:5435 Moderate CentOS 7 python-rtslib Security Update

CentOS Errata and Security Advisory 2020:5435 Moderate

Upstream details at :   https://access.redhat.com/errata/RHSA-2020:5435

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

x86_64:
48122d3d4653fe0fc63133e91c130b529db55e9ff1940bca669fbe8d0e04f223 python-rtslib-2.1.74-1.el7_9.noarch.rpm
e2a10703222e1811d5a65784d7297dc8909810f2a89b78d6c78a402ba28e7a22 python-rtslib-doc-2.1.74-1.el7_9.noarch.rpm

Source:
cce3e4d3cc25868b27365513444097eed5e14599c95f10f9402fd74430ea1b20 python-rtslib-2.1.74-1.el7_9.src.rpm