CVE-2025-64460: Djangoproject Django

High severity, CVSS 7.5. EPSS: 2.1% chance of exploitation in the next 30 days.

An issue was discovered in 5.2 before 5.2.9, 5.1 before 5.1.15, and 4.2 before 4.2.27. Algorithmic complexity in `django.core.serializers.xml_serializer.getInnerText()` allows a remote attacker to cause a potential denial-of-service attack triggering CPU and memory exhaustion via specially crafted XML input processed by the XML `Deserializer`. 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 Seokchan Yoon for reporting this issue.

Affected products

• Djangoproject Django: from 4.2, before 4.2.27 (fixed in 4.2.27); from 5.1, before 5.1.15 (fixed in 5.1.15); from 5.2, before 5.2.9 (fixed in 5.2.9)

Published 2025-12-02. Last modified 2026-06-17.