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. CREATE(Triage):(User=admin) [CVE-2021-28658|https://nvd.nist.gov/vuln/detail/CVE-2021-28658]