Python Library Django 4.2.x < 4.2.29 / 5.2.x < 5.2.12 / 6.0.x < 6.0.3 DoS

high Nessus Plugin ID 300915

Synopsis

A Python library installed on the remote host is affected by a denial of service vulnerability.

Description

The detected version of the Django Python package, is 4.2.x prior to 4.2.29, 5.2.x prior to 5.2.12, or 6.0.x prior to 6.0.3. It is, therefore, affected by a denial of service vulnerability as referenced by security release advisory:

- An issue was discovered in 6.0 before 6.0.3, 5.2 before 5.2.12, and 4.2 before 4.2.29. `URLField.to_python()` in Django calls `urllib.parse.urlsplit()`, which performs NFKC normalization on Windows that is disproportionately slow for certain Unicode characters, allowing a remote attacker to cause denial of service via large URL inputs containing these characters. Earlier, unsupported Django series (such as 5.0.x, 4.1.x, and 3.2.x) were not evaluated and may also be affected. (CVE-2026-25673)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade to Django version 4.2.29, 5.2.12, 6.0.3 or later.

Plugin Details

Severity: High

ID: 300915

File Name: python_django_6_0_3.nasl

Version: 1.1

Type: local

Agent: windows

Family: Windows

Published: 3/5/2026

Updated: 3/5/2026

Configuration: Enable thorough checks (optional)

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: High

Base Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

CVSS Score Source: CVE-2026-25673

CVSS v3

Risk Factor: High

Base Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS Score Source: CVE-2026-25673

Vulnerability Information

CPE: cpe:/a:djangoproject:django

Patch Publication Date: 3/3/2026

Vulnerability Publication Date: 3/3/2026

Reference Information

CVE: CVE-2026-25673

IAVA: 2026-A-0199

Detections

Analytics