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[USN-8009-1] Django vulnerabilities

Posted on 03 February 2026
Ubuntu Security

==========================================================================Ubuntu Security Notice USN-8009-1
February 03, 2026

python-django vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 25.10
- Ubuntu 24.04 LTS
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS

Summary:

Several security issues were fixed in Django.

Software Description:
- python-django: High-level Python web development framework

Details:

It was discovered that Django exposed timing information when checking
passwords. An attacker could possibly use this issue to obtain sensitive
information. (CVE-2025-13473)

Jiyong Yang discovered that Django incorrectly handled malformed requests
with duplicate headers. An attacker could possibly use this issue to cause
a denial of service. This issue only affected Ubuntu 22.04 LTS, Ubuntu
24.04 LTS, and Ubuntu 25.10. (CVE-2025-14550)

Tarek Nakkouch discovered that Django incorrectly parsed raster lookups. An
attacker could possibly use this issue to perform SQL injection attacks.
This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 22.04
LTS, Ubuntu 24.04 LTS, and Ubuntu 25.10. (CVE-2026-1207)

Seokchan Yoon discovered that Django incorrectly handled malformed HTML
inputs containing a large amount of unmatched HTML end tags. An attacker
could possibly use this issue to cause a denial of service. This issue only
affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 22.04
LTS, Ubuntu 24.04 LTS, and Ubuntu 25.10. (CVE-2026-1285)

Solomon Kebede discovered that Django incorrectly handled control
characters in the dictionary expansion of certain QuerySet methods. An
attacker could possibly use this issue to perform SQL injection attacks.
(CVE-2026-1287)

Solomon Kebede discovered that Django incorrectly handled column alias
parsing with dictionary expansion. An attacker could possibly use this
issue to perform SQL injection attacks. This issue only affected Ubuntu
24.04 LTS and Ubuntu 25.10. (CVE-2026-1312)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 25.10
python3-django 3:5.2.4-1ubuntu2.3

Ubuntu 24.04 LTS
python3-django 3:4.2.11-1ubuntu1.14

Ubuntu 22.04 LTS
python3-django 2:3.2.12-2ubuntu1.25

Ubuntu 20.04 LTS
python3-django 2:2.2.12-1ubuntu0.29+esm7
Available with Ubuntu Pro

Ubuntu 18.04 LTS
python-django 1:1.11.11-1ubuntu1.21+esm14
Available with Ubuntu Pro
python3-django 1:1.11.11-1ubuntu1.21+esm14
Available with Ubuntu Pro

Ubuntu 16.04 LTS
python-django 1.8.7-1ubuntu5.15+esm11
Available with Ubuntu Pro
python3-django 1.8.7-1ubuntu5.15+esm11
Available with Ubuntu Pro

Ubuntu 14.04 LTS
python-django 1.6.11-0ubuntu1.3+esm10
Available with Ubuntu Pro

In general, a standard system update will make all the necessary changes.

References:
https://ubuntu.com/security/notices/USN-8009-1
CVE-2025-13473, CVE-2025-14550, CVE-2026-1207, CVE-2026-1285,
CVE-2026-1287, CVE-2026-1312

Package Information:
https://launchpad.net/ubuntu/+source/python-django/3:5.2.4-1ubuntu2.3
https://launchpad.net/ubuntu/+source/python-django/3:4.2.11-1ubuntu1.14
https://launchpad.net/ubuntu/+source/python-django/2:3.2.12-2ubuntu1.25

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