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.


https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2023-46695
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.
2023-11-02T06:15:08Z

Source: CVEAnnouncements
Source Link: https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2023-46695