A python-reportlab security update has been released for CentOS 6.

CentOS Errata and Security Advisory 2020:0197 Important

Upstream details at :   https://access.redhat.com/errata/RHSA-2020:0197

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

i386:
10e384f6cae23d460beb64b2c0547698c51735e8b37f5faec2500c4326f256cb python-reportlab-2.3-3.el6_10.1.i686.rpm
b4ac741c80a61e7ea1e883553585d674330297516781269df461173a1f393844 python-reportlab-docs-2.3-3.el6_10.1.noarch.rpm

x86_64:
ca3e88351d9bd5b4d4fb6ddda73c0e26bd7efc27524f38e30787f79b11bd0856 python-reportlab-2.3-3.el6_10.1.x86_64.rpm
b4ac741c80a61e7ea1e883553585d674330297516781269df461173a1f393844 python-reportlab-docs-2.3-3.el6_10.1.noarch.rpm

Source:
e4ccb9e6c4a70c5753283d3672c92b70ca71a5efca5c97df78b7e51a17ed78c7 python-reportlab-2.3-3.el6_10.1.src.rpm