An issue was discovered in Django 5.1 before 5.1.8 and 5.0 before 5.0.14. The NFKC normalization is slow on Windows. As a consequence, django.contrib.auth.views.LoginView, django.contrib.auth.views.LogoutView, and django.views.i18n.set_language are subject to a potential denial-of-service attack via certain inputs with a very large number of Unicode characters.
{
"github_reviewed_at": "2025-04-02T20:11:40Z",
"github_reviewed": true,
"cwe_ids": [
"CWE-770"
],
"nvd_published_at": "2025-04-02T13:15:44Z",
"severity": "MODERATE"
}