What is CVE-2026-53878?

CVE-2026-53878 is a medium-severity vulnerability in Djangoproject Django, classified under CWE-144. CVSS score: 6.1/10. Published 2026-07-07.

How severe is CVE-2026-53878?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Vulnerability in Djangoproject Django

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 wit…

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Djangoproject Django — versions 6.0, 6.0.7, 5.2

Weakness classification (CWE)

CWE-144

References

6a34fbeb-21d4-45e7-8e0a-62b95bc12c92 (vendor-advisory)
6a34fbeb-21d4-45e7-8e0a-62b95bc12c92 (mailing-list)
6a34fbeb-21d4-45e7-8e0a-62b95bc12c92 (vendor-advisory)

Frequently asked questions

What is CVE-2026-53878?: CVE-2026-53878 is a medium-severity vulnerability in Djangoproject Django, classified under CWE-144. CVSS score: 6.1/10. Published 2026-07-07.
How severe is CVE-2026-53878?: Medium severity. CVSS v3 base score is 6.1 out of 10.