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GHSA-8j24-cjrq-gr2m

Django has a denial-of-service possibility in strip_tags()

Source: GitHub Advisory Database (reviewed) Moderate CVE-2025-32873

Packages

EcosystemPackageAffectedFixed in
PyPI Django >= 4.2, < 4.2.21 4.2.21
PyPI Django >= 5.1, < 5.1.9 5.1.9
PyPI Django >= 5.2, < 5.2.1 5.2.1

Details

As written in the advisory (Markdown source, shown as plain text).

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().

References

External links from the advisory. They lead to third-party sites.