CVE-2023-46695

HIGH

Django 3.2-3.2.22, 4.1-4.1.12, 4.2-4.2.6 - Denial of Service via NFKC Unicode Normalization

Title source: llm
STIX 2.1

Description

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.

References (4)

Core 4

Scores

CVSS v3 7.5
EPSS 0.4977
EPSS Percentile 98.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-770
Status published
Products (2)
djangoproject/django 3.2 - 3.2.23
pypi/Django 3.2a1 - 3.2.23PyPI
Published Nov 02, 2023
Tracked Since Feb 18, 2026