CVE-2023-43665

MEDIUM5.9EPSS 2.8%

Django Denial-of-service in django.utils.text.Truncator

Published: 11/3/2023Modified: 4/28/2026

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.

Affected packages (4)

Bitnami/django>= 3.2.0, < 3.2.22, >= 4.1.0, < 4.1.12, >= 4.2.0, < 4.2.6
Debian/python-djangofrom 0, < 2:2.2.28-1~deb11u7
PyPI/django>= 3.2a1, < 3.2.22
PyPI/django>= 3.2, < 3.2.22, >= 4.1, < 4.1.12, >= 4.2, < 4.2.6

CVSS scores

Source	Version	Severity	Vector
osv	CVSS 4.0	—	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
osv	CVSS 3.1	MEDIUM5.9	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Description

Affected packages (4)

CVSS scores

References (23)