CVE-2025-64460

Name	CVE-2025-64460
Description	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.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs	1121788

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
python-django (PTS)	bullseye	2:2.2.28-1~deb11u2	vulnerable
	bullseye (security)	2:2.2.28-1~deb11u9	vulnerable
	bookworm, bookworm (security)	3:3.2.19-1+deb12u1	vulnerable
	trixie	3:4.2.23-1	vulnerable
	forky	3:4.2.26-1	vulnerable
	sid	3:4.2.27-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
python-django	source	(unstable)	3:4.2.27-1			1121788

Notes

https://www.djangoproject.com/weblog/2025/dec/02/security-releases/
Fixed by: https://github.com/django/django/commit/4d2b8803bebcdefd2b76e9e8fc528d5fddea93f0 (4.2.27)