CVE-2026-3902 Affecting python-django package, versions <2:3.2.12-2ubuntu1.26


Severity

Recommended
low

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.44% (35th percentile)

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  • Snyk IDSNYK-UBUNTU2204-PYTHONDJANGO-15978640
  • published11 Apr 2026
  • disclosed7 Apr 2026

Introduced: 7 Apr 2026

CVE-2026-3902  (opens in a new tab)

How to fix?

Upgrade Ubuntu:22.04 python-django to version 2:3.2.12-2ubuntu1.26 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python-django package and not the python-django package as distributed by Ubuntu. See How to fix? for Ubuntu:22.04 relevant fixed versions and status.

An issue was discovered in 6.0 before 6.0.4, 5.2 before 5.2.13, and 4.2 before 4.2.30. ASGIRequest allows a remote attacker to spoof headers by exploiting an ambiguous mapping of two header variants (with hyphens or with underscores) to a single version with underscores. 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 Tarek Nakkouch for reporting this issue.

CVSS Base Scores

version 3.1