GHSA-qmf9-6jqf-j8fq Django potential denial of service vulnerability in UsernameField on Windows

• PyPI Django: >= 3.2a1, < 3.2.23 → fixed in 3.2.23 • PyPI Django: >= 4.1a1, < 4.1.13 → fixed in 4.1.13 • PyPI Django: >= 4.2a1, < 4.2.7 → fixed in 4.2.7

An issue was discovered in Django 3.2 before 3.2.23, 4.1 before 4.1.13, and 4.2 before 4.2.7. The NFKC normalization is slow on Windows. As a consequence, django.contrib.auth.forms.UsernameField is subject to a potential DoS (denial of service) attack via certain inputs with a very large number of Unicode characters.