CVE-2023-46695

Django potential denial of service vulnerability in UsernameField on Windows

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.

Patch Available

Fix available through Seal Security. No upgrade required, protect your application instantly.

Fix without upgrading

Vulnerability Details

Score

7.5

Score Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Versions

django >= 3.2a1 < 3.2.23; django >= 4.1a1 < 4.1.13; django >= 4.2a1 < 4.2.7

Severity

High

Ecosystem

Python

Publish Date

November 2, 2023

Modified Date

September 20, 2024