CVE-2026-53878

An issue was discovered in Django 6.0 before 6.0.7 and 5.2 before 5.2.16. `DomainNameValidator` does not prohibit newlines in domain names (unless used via a form field, since `CharField` strips newlines). If an application uses values with newlines in an HTTP response, header injection can occur. Django itself is unaffected because `HttpResponse` prohibits newlines in HTTP headers. 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 Bence Nagy for reporting this issue.

CVSS v3 6.1 MEDIUM

6.1^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
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/jul/07/security-releases/	Vendor Advisory Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:djangoproject:django::::::::
	cpe:2.3:a:djangoproject:django::::::::

History

09 Jul 2026, 12:58

Type	Values Removed	Values Added
CPE		cpe:2.3:a:djangoproject:django::::::::
References	~~() https://docs.djangoproject.com/en/dev/releases/security/ -~~	() https://docs.djangoproject.com/en/dev/releases/security/ - Patch, Vendor Advisory
References	~~() https://groups.google.com/g/django-announce -~~	() https://groups.google.com/g/django-announce - Release Notes
References	~~() https://www.djangoproject.com/weblog/2026/jul/07/security-releases/ -~~	() https://www.djangoproject.com/weblog/2026/jul/07/security-releases/ - Vendor Advisory, Patch
First Time		Djangoproject Djangoproject django

07 Jul 2026, 15:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-07 15:16

Updated : 2026-07-09 12:58

NVD link : CVE-2026-53878

Mitre link : CVE-2026-53878

CVE.ORG link : CVE-2026-53878

JSON object : View

Products Affected

djangoproject

django

CWE

CWE-144

Improper Neutralization of Line Delimiters

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