# 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.

- Web page: https://patchblox.com/security/cve/CVE-2026-1285
- Priority: High
- CVSS: 7.5 (high)
- EPSS: 0.0111
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Feb 3, 2026

## Description

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

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | python-Django opensuse-leap 15.6 | 4.2.11-150600.3.47.1 | [SUSE-SU-2026:0440-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-0440-1.md) | Feb 11, 2026 |
| Linux | python-Django opensuse-leap 16.0 | 5.2.4-bp160.5.1 | [OPENSUSE-SU-2026:20184-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-20184-1.md) | Feb 7, 2026 |
| Linux | python-Django sles 15.7 | 4.2.11-150600.3.47.1 | [SUSE-SU-2026:0440-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-0440-1.md) | Feb 11, 2026 |
| Linux | python-django Debian 12.15 (bookworm) | 3:3.2.25-0+deb12u2 | [DEBIAN-CVE-2026-1285](https://patchblox.com/security/data/fix/linux/debian-cve-2026-1285.md) | Feb 3, 2026 |
| Linux | python-django Debian 13.5 (trixie) | 3:4.2.28-0+deb13u1 | [DEBIAN-CVE-2026-1285](https://patchblox.com/security/data/fix/linux/debian-cve-2026-1285.md) | Feb 3, 2026 |
| Linux | python-django Debian 14 | 3:4.2.28-1 | [DEBIAN-CVE-2026-1285](https://patchblox.com/security/data/fix/linux/debian-cve-2026-1285.md) | Feb 3, 2026 |
| Linux | python-django Ubuntu 18.04.6 LTS (bionic) | 1:1.11.11-1ubuntu1.21+esm14 | [python-django 1:1.11.11-1ubuntu1.21+esm14](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-python-django-1-1.11.11-1ubuntu1.21-esm14.md) | Feb 3, 2026 |
| Linux | 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](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-python-django-common-1-1.11.11-1ubuntu1.21-esm14.md) | Feb 3, 2026 |
| Linux | python3-django Ubuntu 18.04.6 LTS (bionic) | 1:1.11.11-1ubuntu1.21+esm14 | [python3-django 1:1.11.11-1ubuntu1.21+esm14](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-python3-django-1-1.11.11-1ubuntu1.21-esm14.md) | Feb 3, 2026 |
| Linux | python3-django Ubuntu 20.04 LTS (focal) | 2:2.2.12-1ubuntu0.29+esm7 | [python3-django 2:2.2.12-1ubuntu0.29+esm7](https://patchblox.com/security/data/fix/linux/ubuntu-focal-python3-django-2-2.2.12-1ubuntu0.29-esm7.md) | Feb 3, 2026 |
| Linux | python3-django Ubuntu 22.04.1 LTS (jammy) | 2:3.2.12-2ubuntu1.25 | [python3-django 2:3.2.12-2ubuntu1.25](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-python3-django-2-3.2.12-2ubuntu1.25.md) | Feb 3, 2026 |
| Linux | python3-django Ubuntu 24.04.5 LTS (noble) | 3:4.2.11-1ubuntu1.14 | [python3-django 3:4.2.11-1ubuntu1.14](https://patchblox.com/security/data/fix/linux/ubuntu-noble-python3-django-3-4.2.11-1ubuntu1.14.md) | Feb 3, 2026 |
| Linux | python3-django Ubuntu 25.10 (questing) | 3:5.2.4-1ubuntu2.3 | [python3-django 3:5.2.4-1ubuntu2.3](https://patchblox.com/security/data/fix/linux/ubuntu-questing-python3-django-3-5.2.4-1ubuntu2.3.md) | Feb 3, 2026 |
| Linux | python3-django Ubuntu 26.04.1 LTS (resolute) | 3:5.2.9-0ubuntu3 | [python3-django 3:5.2.9-0ubuntu3](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-python3-django-3-5.2.9-0ubuntu3.md) | Feb 3, 2026 |

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Data as of 2026-11-08T06:59:42Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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