CVEvulnerability
CVE-2026-3902
7.5 HIGH
Official page ↗
- Status
- Analyzed
- Published
- 2026-04-07
- Last modified
- 2026-10-26
- Assigner
- 6a34fbeb-21d4-45e7-8e0a-62b95bc12c92
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- Weaknesses
- CWE-290
Description
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.
Affected configurations
• djangoproject django (>= 4.2 < 4.2.30)
• djangoproject django (>= 5.2 < 5.2.13)
• djangoproject django (>= 6.0 < 6.0.4)
Related
Weakness · CWE (1)
- CWE-290 Authentication Bypass by Spoofing weakness
References
- https://docs.djangoproject.com/en/dev/releases/security/ Patch, Vendor Advisory
- https://groups.google.com/g/django-announce Release Notes
- https://www.djangoproject.com/weblog/2026/apr/07/security-releases/ Patch, Vendor Advisory