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.
CVSS Details
- CVSS 3.1 Base Score: 7.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade py3-django | Feb 10, 2026 | Feb 3, 2026 |
| Debian | — | Upgrade python-django | Feb 23, 2026 | Feb 23, 2026 |
| Suse | — | Upgrade python3-djangoUpgrade python313-DjangoUpgrade python311-Django | Feb 5, 2026 | Feb 5, 2026 |
| Ubuntu | — | Upgrade python3-djangoUpgrade python-django (Ubuntu Pro)Upgrade python3-django (Ubuntu Pro) | Feb 4, 2026 | Feb 3, 2026 |
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