CVE-2023-31047: Djangoproject Django

Critical severity, CVSS 9.8. EPSS: 1.4% chance of exploitation in the next 30 days.

In Django 3.2 before 3.2.19, 4.x before 4.1.9, and 4.2 before 4.2.1, it was possible to bypass validation when using one form field to upload multiple files. This multiple upload has never been supported by forms.FileField or forms.ImageField (only the last uploaded file was validated). However, Django's "Uploading multiple files" documentation suggested otherwise.

Affected products

• Djangoproject Django: from 3.2, before 3.2.19 (fixed in 3.2.19); from 4.0, before 4.1.9 (fixed in 4.1.9); version 4.2 only
• Fedoraproject Fedora: version 38 only

Published 2023-05-07. Last modified 2026-06-17.