CVE-2026-3902 Details
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.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Apr 7, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://docs.djangoproject.com/en/dev/releases/security/ | Django Software Foundation | PatchVendor Advisory |
| https://groups.google.com/g/django-announce | Django Software Foundation | Release Notes |
| https://www.djangoproject.com/weblog/2026/apr/07/security-releases/ | Django Software Foundation | PatchVendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-290 | Authentication Bypass by Spoofing | Django Software Foundation |
Affected Products
| Product | Versions |
|---|---|
| djangoproject django | >= 4.2, < 4.2.30 >= 5.2, < 5.2.13 >= 6.0, < 6.0.4 |
CPE
Remediation
| |
Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | Django Software Foundation |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 13, 2026 | Initial Analysis | [email protected] |
| Apr 7, 2026 | CVE Modified | CISA-ADP |
| Apr 7, 2026 | New CVE Received | Django Software Foundation |