CVE-2021-32052: Djangoproject Django

Medium severity, CVSS 6.1. EPSS: 3.2% chance of exploitation in the next 30 days.

In Django 2.2 before 2.2.22, 3.1 before 3.1.10, and 3.2 before 3.2.2 (with Python 3.9.5+), URLValidator does not prohibit newlines and tabs (unless the URLField form field is used). If an application uses values with newlines in an HTTP response, header injection can occur. Django itself is unaffected because HttpResponse prohibits newlines in HTTP headers.

Affected products

• Djangoproject Django: from 2.2, before 2.2.22 (fixed in 2.2.22); from 3.1, before 3.1.10 (fixed in 3.1.10); from 3.2, before 3.2.2 (fixed in 3.2.2)
• Fedoraproject Fedora: version 34 only

Published 2021-05-06. Last modified 2026-06-17.