CVE-2025-32873

Summary

An issue was discovered in Django 4.2 before 4.2.21, 5.1 before 5.1.9, and 5.2 before 5.2.1. The django.utils.html.strip_tags() function is vulnerable to a potential denial-of-service (slow performance) when processing inputs containing large sequences of incomplete HTML tags. The template filter striptags is also vulnerable, because it is built on top of strip_tags().

Impact & exploitability

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Affected products we track (1)

Recommendation

Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.

Additional information

• NVD record
• https://www.djangoproject.com/weblog/2025/may/07/security-releases/Advisory
• https://docs.djangoproject.com/en/dev/releases/security/
• https://groups.google.com/g/django-announce
• http://www.openwall.com/lists/oss-security/2025/05/07/1Advisory