In Django 2.2 before 2.2.18, 3.0 before 3.0.12, and 3.1 before 3.1.6, the django.utils.archive.extract method (used by "startapp --template" and "startproject --template") allows directory traversal via an archive with absolute paths or relative paths with dot segments.

References

• https://nvd.nist.gov/vuln/detail/CVE-2021-3281
• django/django@05413af
• https://docs.djangoproject.com/en/3.1/releases/security/
• https://groups.google.com/forum/#!forum/django-announce
• https://lists.fedoraproject.org/archives/list/[email protected]/message/YF52FKEH5S2P5CM4X7IXSYG67YY2CDOO/
• https://security.netapp.com/advisory/ntap-20210226-0004/
• https://www.djangoproject.com/weblog/2021/feb/01/security-releases/
• https://docs.djangoproject.com/en/3.1/releases/3.0.12/
• django/django@02e6592
• django/django@21e7622
• django/django@52e409e