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Vulnerability record · CVE-2025-32873 · published 8 May 2025

CVE-2025-32873: Djangoproject django allocation without limits vulnerability

Djangoproject · Django

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().

5.3 CVSS 3.1 Medium EPSS 14% · top 3.7% CWE-770 · Allocation without limits
5.3CVSS 3.1 base score
14%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

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().

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://docs.djangoproject.com/en/dev/releases/security/ Release Notes
https://groups.google.com/g/django-announce Mailing List
https://www.djangoproject.com/weblog/2025/may/07/security-releases/ Vendor Advisory
http://www.openwall.com/lists/oss-security/2025/05/07/1 Mailing ListThird Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2025-32873), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.