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6.1 Medium

CVE-2026-53878 An issue was discovered in Django 6.0 before 6.0.7 and 5.2 before 5.2.16

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 products and versions

Product Affected versions Fixed in
Django 6.0 6.0 → < 6.0.7 6.0.7
Django 5.2 5.2 → < 5.2.16 5.2.16

References

Timeline

  1. Published
  2. Last modified

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