CVE-2026-1285

CVE-2026-1285: Potential denial-of-service vulnerability in django.utils.text.Truncator HTML methods

Vendor Djangoproject
Product Django
Weakness CWE-407
Published February 3, 2026
Last update February 3, 2026

CVSS base score

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

February 3, 2026 CVE published
February 3, 2026 Record updated