GHSA-8qcx-xf44-272x
Django: DomainNameValidator permits newline characters that may enable HTTP header injection
At a glance
- Published
- Updated
- CVE
- CVE-2026-53878
- Aliases
- BIT-django-2026-53878, PYSEC-2026-2092
- CVSS_V3
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- CVSS_V4
- 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
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 packages
| Package | Versions |
|---|---|
| PyPI · django | introduced 0, fixed 5.2.16 |
| PyPI · django | introduced 6.0.0, fixed 6.0.7 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-53878 ADVISORY
- https://github.com/django/django/commit/3a720d0d8bf2529253b98968f10ca73daf6d693c WEB
- https://github.com/django/django/commit/a5de13f1491f1dbf2bb0ad9b91570524ebbc8acd WEB
- https://github.com/django/django/commit/d5d60ed0323cddaa0ce0237a26a3d49ac21ee05e WEB
- https://docs.djangoproject.com/en/dev/releases/security WEB
- https://github.com/django/django PACKAGE
- https://github.com/pypa/advisory-database/tree/main/vulns/django/PYSEC-2026-2092.yaml WEB
- https://groups.google.com/g/django-announce WEB
- https://www.djangoproject.com/weblog/2026/jul/07/security-releases WEB
Sources
| Source | Licence |
|---|---|
| OSV.dev | CC-BY 4.0 — GitHub Advisory Database |