CVE-2026-1285

python-django: An issue was discovered in 6.0 before 6.0.2, 5.2 before 5.2.11, and 4.2 before 4.2.28

CVE-2026-1285 is fixed in 4 products on 1 platform, first by python-django 1:1.11.11-1ubuntu1.21+esm14, released February 3, 2026. It is not reported as exploited. Patch Radar priority: High.

High
CVSS
7.5
high
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0111
66th percentile

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.

Where it's fixed

ProductFixed inFixReleased
Linux
python-Django · opensuse-leap 15.6 4.2.11-150600.3.47.1 SUSE-SU-2026:0440-1 Feb 11, 2026
python-Django · opensuse-leap 16.0 5.2.4-bp160.5.1 OPENSUSE-SU-2026:20184-1 Feb 7, 2026
python-Django · sles 15.7 4.2.11-150600.3.47.1 SUSE-SU-2026:0440-1 Feb 11, 2026
python-django · Debian 12.15 (bookworm) 3:3.2.25-0+deb12u2 DEBIAN-CVE-2026-1285 Feb 3, 2026
python-django · Debian 13.5 (trixie) 3:4.2.28-0+deb13u1 DEBIAN-CVE-2026-1285 Feb 3, 2026
python-django · Debian 14 3:4.2.28-1 DEBIAN-CVE-2026-1285 Feb 3, 2026
python-django · Ubuntu 18.04.6 LTS (bionic) 1:1.11.11-1ubuntu1.21+esm14 python-django 1:1.11.11-1ubuntu1.21+esm14 Feb 3, 2026
python-django-common · Ubuntu 18.04.6 LTS (bionic) 1:1.11.11-1ubuntu1.21+esm14 python-django-common 1:1.11.11-1ubuntu1.21+esm14 Feb 3, 2026
python3-django · Ubuntu 18.04.6 LTS (bionic) 1:1.11.11-1ubuntu1.21+esm14 python3-django 1:1.11.11-1ubuntu1.21+esm14 Feb 3, 2026
python3-django · Ubuntu 20.04 LTS (focal) 2:2.2.12-1ubuntu0.29+esm7 python3-django 2:2.2.12-1ubuntu0.29+esm7 Feb 3, 2026
python3-django · Ubuntu 22.04.1 LTS (jammy) 2:3.2.12-2ubuntu1.25 python3-django 2:3.2.12-2ubuntu1.25 Feb 3, 2026
python3-django · Ubuntu 24.04.5 LTS (noble) 3:4.2.11-1ubuntu1.14 python3-django 3:4.2.11-1ubuntu1.14 Feb 3, 2026
python3-django · Ubuntu 25.10 (questing) 3:5.2.4-1ubuntu2.3 python3-django 3:5.2.4-1ubuntu2.3 Feb 3, 2026
python3-django · Ubuntu 26.04.1 LTS (resolute) 3:5.2.9-0ubuntu3 python3-django 3:5.2.9-0ubuntu3 Feb 3, 2026

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