SecuriTricks - CVE-2026-3902

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.

Product(s) Impacted

Vendor	Product	Versions
Django	Django	6.0.0-6.0.4, 5.2.0-5.2.13, 4.2.0-4.2.30, 5.0., 4.1., 3.2.*

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-290

Authentication Bypass by Spoofing

This attack-focused weakness is caused by incorrectly implemented authentication schemes that are subject to spoofing attacks.

*CPE(s)

Affected systems and software identified for this CVE.

Type	Vendor	Product	Version	Update	Edition	Language	Software Edition	Target Software	Target Hardware	Other Information
a	django	django	6.0.0-6.0.4	/	/	/	/	/	/	/
a	django	django	5.2.0-5.2.13	/	/	/	/	/	/	/
a	django	django	4.2.0-4.2.30	/	/	/	/	/	/	/
a	django	django	5.0.*	/	/	/	/	/	/	/
a	django	django	4.1.*	/	/	/	/	/	/	/
a	django	django	3.2.*	/	/	/	/	/	/	/

References

https://docs.djangoproject.com/en/dev/releases/security/

https://groups.google.com/g/django-announce

https://www.djangoproject.com/weblog/2026/apr/07/security-releases/

CVSS Score

7.5 / 10

CVSS Data - 3.1

Attack Vector: NETWORK
Attack Complexity: LOW
Privileges Required: NONE
Scope: UNCHANGED
Confidentiality Impact: NONE
Integrity Impact: HIGH
Availability Impact: NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

View Vector String

Timeline

Published: April 7, 2026, 3:17 p.m.
Last Modified: April 8, 2026, 9:27 p.m.

Status : Awaiting Analysis

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

6a34fbeb-21d4-45e7-8e0a-62b95bc12c92

CVE-2026-3902