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
| Link | Resource |
|---|---|
| https://docs.djangoproject.com/en/dev/releases/security/ | Vendor Advisory Patch |
| https://groups.google.com/g/django-announce | Release Notes |
| https://www.djangoproject.com/weblog/2026/feb/03/security-releases/ | Patch Vendor Advisory |
Configurations
Configuration 1 (hide)
|
History
04 Feb 2026, 17:09
| Type | Values Removed | Values Added |
|---|---|---|
| First Time |
Djangoproject django
Djangoproject |
|
| References | () https://docs.djangoproject.com/en/dev/releases/security/ - Vendor Advisory, Patch | |
| References | () https://groups.google.com/g/django-announce - Release Notes | |
| References | () https://www.djangoproject.com/weblog/2026/feb/03/security-releases/ - Patch, Vendor Advisory | |
| CPE | cpe:2.3:a:djangoproject:django:*:*:*:*:*:*:*:* |
03 Feb 2026, 17:15
| Type | Values Removed | Values Added |
|---|---|---|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 7.5 |
03 Feb 2026, 15:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-02-03 15:16
Updated : 2026-02-04 17:09
NVD link : CVE-2026-1285
Mitre link : CVE-2026-1285
CVE.ORG link : CVE-2026-1285
JSON object : View
Products Affected
djangoproject
- django
CWE
CWE-407
Inefficient Algorithmic Complexity