Versions mentioned in the description apply to the upstream
Remediation section below for
Ubuntu:20.04 relevant versions.
In Django 2.2 before 2.2.20, 3.0 before 3.0.14, and 3.1 before 3.1.8, MultiPartParser allowed directory traversal via uploaded files with suitably crafted file names. Built-in upload handlers were not affected by this vulnerability.
python-django to version 2:2.2.12-1ubuntu0.5 or higher.