CVE-2026-1285
HIGHDjango 4.2-4.2.27, 5.2-5.2.10, 6.0-6.0.1 - Denial of Service via Unmatched HTML End Tags
Title source: llmDescription
An issue was discovered in 6.0 before 6.0.2, 5.2 before 5.2.11, and 4.2 before 4.2.28. `django.utils.text.Truncator.chars()` and `Truncator.words()` methods (with `html=True`) and the `truncatechars_html` and `truncatewords_html` template filters allow a remote attacker to cause a potential denial-of-service via crafted inputs containing a large number of unmatched HTML end tags. Earlier, unsupported Django series (such as 5.0.x, 4.1.x, and 3.2.x) were not evaluated and may also be affected. Django would like to thank Seokchan Yoon for reporting this issue.
References (3)
Core 3
Core References
Vendor Advisory, Patch vendor-advisory
https://docs.djangoproject.com/en/dev/releases/security/
Release Notes mailing-list
https://groups.google.com/g/django-announce
Patch, Vendor Advisory vendor-advisory
https://www.djangoproject.com/weblog/2026/feb/03/security-releases/
Scores
CVSS v3
7.5
EPSS
0.0099
EPSS Percentile
57.9%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-407
Status
published
Products (4)
djangoproject/django
4.2 - 4.2.28
pypi/Django
4.2a1 - 4.2.28PyPI
pypi/Django
5.2a1 - 5.2.11PyPI
pypi/Django
6.0a1 - 6.0.2PyPI
Published
Feb 03, 2026
Tracked Since
Feb 18, 2026