GitHub Advisoryadvisory · PyPI

GHSA-h8gc-pgj2-vjm3 Django Denial-of-service in django.utils.text.Truncator

HIGH Published 2023-11-03 Modified 2025-11-04 Official page ↗
Aliases
CVE-2023-43665
Ecosystem
PyPI
Packages
Django
Severity
High
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-1284, CWE-400
Reviewed
2023-11-03

Affected packages

• PyPI Django: >= 3.2a1, < 3.2.22 → fixed in 3.2.22 • PyPI Django: >= 4.1a1, < 4.1.12 → fixed in 4.1.12 • PyPI Django: >= 4.2a1, < 4.2.6 → fixed in 4.2.6

Description

In Django 3.2 before 3.2.22, 4.1 before 4.1.12, and 4.2 before 4.2.6, the django.utils.text.Truncator chars() and words() methods (when used with html=True) are subject to a potential DoS (denial of service) attack via certain inputs with very long, potentially malformed HTML text. The chars() and words() methods are used to implement the truncatechars_html and truncatewords_html template filters, which are thus also vulnerable. NOTE: this issue exists because of an incomplete fix for CVE-2019-14232.

Related

Alias · CVE (1)

  • CVE-2023-43665 In Django 3.2 before 3.2.22, 4.1 before 4.1.12, and 4.2 before 4.2.6, the django.utils.text.Truncator chars() and words() methods (when… vulnerability

Weakness · CWE (2)

  • CWE-1284 Improper Validation of Specified Quantity in Input weakness
  • CWE-400 Uncontrolled Resource Consumption weakness

References