A python-bleach security update has been released for Debian GNU/Linux 9 LTS to address a cross-site scripting (XSS) vulnerability in python-bleach.

DLA 2620-1: python-bleach security update

- -------------------------------------------------------------------------
Debian LTS Advisory DLA-2620-1 debian-lts@lists.debian.org
  https://www.debian.org/lts/security/ Chris Lamb
April 06, 2021   https://wiki.debian.org/LTS
- -------------------------------------------------------------------------

Package : python-bleach
Version : 2.0-1+deb9u1
CVE ID : CVE-2021-23980
Debian Bug : #986251

It was discovered that there was a cross-site scripting (XSS)
vulnerability in python-bleach, a whitelist-based HTML sanitisation
library.

For Debian 9 "Stretch", this problem has been fixed in version
2.0-1+deb9u1.

We recommend that you upgrade your python-bleach packages.

For the detailed security status of python-bleach please refer to
its security tracker page at:
  https://security-tracker.debian.org/tracker/python-bleach

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at:   https://wiki.debian.org/LTS