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

CentOS-announce: CESA-2020:1561 Important CentOS 7 python-twisted-web Security Update

CentOS Errata and Security Advisory 2020:1561 Important

Upstream details at :   https://access.redhat.com/errata/RHSA-2020:1561

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

x86_64:
c934c963bfda9541fb295807dd5b3491516e30ddca030f9994b16aaf5abf586a python-twisted-web-12.1.0-7.el7_8.x86_64.rpm

Source:
1fc7a67cae437978a930e1430f7fd6723180dfe327b2c173719b352e471804ab python-twisted-web-12.1.0-7.el7_8.src.rpm