Debian 11: DLA-4006-1 critical: python-django DoS Advisory

The strip_tags() method and striptags template filter were subject to
a potential denial-of-service attack via certain inputs containing
large sequences of nested incomplete HTML entities.

For Debian 11 bullseye, this problem has been fixed in version
2:2.2.28-1~deb11u3.

We recommend that you upgrade your python-django packages.

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

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