CVEvulnerability
CVE-2026-53878
5.3 MEDIUM
Official page ↗
- Status
- Analyzed
- Published
- 2026-07-07
- Last modified
- 2026-10-25
- Assigner
- 6a34fbeb-21d4-45e7-8e0a-62b95bc12c92
- CVSS 4.0 (6a34fbeb-21d4-45e7-8e0a-62b95bc12c92)
- 5.3 MEDIUM — CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- CVSS 3.1 (6a34fbeb-21d4-45e7-8e0a-62b95bc12c92)
- 6.1 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- Weaknesses
- CWE-144
Description
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.
Affected configurations
• djangoproject django (>= 5.2 < 5.2.16)
• djangoproject django (>= 6.0 < 6.0.7)
Related
Weakness · CWE (1)
- CWE-144 Improper Neutralization of Line Delimiters 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/jul/07/security-releases/ Vendor Advisory, Patch