# CVE-2023-43665: python-django: In Django 3.2 before 3.2.22, 4.1 before 4.1.12, and 4.2 before 4.2.6, the django.utils.text.Truncator chars() and wor...

CVE-2023-43665 is fixed in 3 products on 1 platform, first by python-django 1:1.11.11-1ubuntu1.21+esm2, released October 4, 2023. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2023-43665
- Priority: High
- CVSS: 7.5 (high)
- EPSS: 0.0146
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Oct 4, 2023

## Description

In Django 3.2 before 3.2.22, 4.1 before 4.1.12, and 4.2 before 4.2.6, the django.utils.text.Truncator chars() and words() methods (when used with html=True) are subject to a potential DoS (denial of service) attack via certain inputs with very long, potentially malformed HTML text. The chars() and words() methods are used to implement the truncatechars_html and truncatewords_html template filters, which are thus also vulnerable. NOTE: this issue exists because of an incomplete fix for CVE-2019-14232.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | python-django Debian 12.15 (bookworm) | 3:3.2.25-0+deb12u1 | [DEBIAN-CVE-2023-43665](https://patchblox.com/security/data/fix/linux/debian-cve-2023-43665.md) | Nov 3, 2023 |
| Linux | python-django Debian 13.5 (trixie) | 3:4.2.6-1 | [DEBIAN-CVE-2023-43665](https://patchblox.com/security/data/fix/linux/debian-cve-2023-43665.md) | Nov 3, 2023 |
| Linux | python-django Debian 14 | 3:4.2.6-1 | [DEBIAN-CVE-2023-43665](https://patchblox.com/security/data/fix/linux/debian-cve-2023-43665.md) | Nov 3, 2023 |
| Linux | python-django Ubuntu 18.04.6 LTS (bionic) | 1:1.11.11-1ubuntu1.21+esm2 | [python-django 1:1.11.11-1ubuntu1.21+esm2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-python-django-1-1.11.11-1ubuntu1.21-esm2.md) | Oct 4, 2023 |
| Linux | python-django-common Ubuntu 18.04.6 LTS (bionic) | 1:1.11.11-1ubuntu1.21+esm2 | [python-django-common 1:1.11.11-1ubuntu1.21+esm2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-python-django-common-1-1.11.11-1ubuntu1.21-esm2.md) | Oct 4, 2023 |
| Linux | python3-django Ubuntu 18.04.6 LTS (bionic) | 1:1.11.11-1ubuntu1.21+esm2 | [python3-django 1:1.11.11-1ubuntu1.21+esm2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-python3-django-1-1.11.11-1ubuntu1.21-esm2.md) | Oct 4, 2023 |
| Linux | python3-django Ubuntu 20.04 LTS (focal) | 2:2.2.12-1ubuntu0.20 | [python3-django 2:2.2.12-1ubuntu0.20](https://patchblox.com/security/data/fix/linux/ubuntu-focal-python3-django-2-2.2.12-1ubuntu0.20.md) | Oct 4, 2023 |
| Linux | python3-django Ubuntu 22.04.1 LTS (jammy) | 2:3.2.12-2ubuntu1.9 | [python3-django 2:3.2.12-2ubuntu1.9](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-python3-django-2-3.2.12-2ubuntu1.9.md) | Oct 4, 2023 |
| Linux | python3-django Ubuntu 24.04.5 LTS (noble) | 3:4.2.4-1ubuntu2 | [python3-django 3:4.2.4-1ubuntu2](https://patchblox.com/security/data/fix/linux/ubuntu-noble-python3-django-3-4.2.4-1ubuntu2.md) | Oct 4, 2023 |
| Linux | python3-django Ubuntu 24.10 (oracular) | 3:4.2.4-1ubuntu2 | [python3-django 3:4.2.4-1ubuntu2](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-python3-django-3-4.2.4-1ubuntu2.md) | Jan 16, 2026 |
| Linux | python3-django Ubuntu 25.04 (plucky) | 3:4.2.4-1ubuntu2 | [python3-django 3:4.2.4-1ubuntu2](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-python3-django-3-4.2.4-1ubuntu2.md) | Jan 16, 2026 |

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Data as of 2026-11-08T13:06:02Z 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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