CVE-2025-64460
HIGH7.5EPSS 0.07%Potential denial-of-service vulnerability in XML serializer text extraction
Published: 12/2/2025Modified: 5/20/2026
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.
Affected packages (4)
- Bitnami/django>= 4.2.0, < 4.2.27, >= 5.1.0, < 5.1.15, >= 5.2.0, < 5.2.9
- Debian/python-djangofrom 0, < 2:2.2.28-1~deb11u10
- PyPI/django>= 5.2a1, < 5.2.9
- PyPI/django>= 4.2, < 4.2.27, >= 5.1, < 5.1.15, >= 5.2, < 5.2.9
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N |
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
References (12)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2025-64460
- ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2025-64460
- PATCHhttps://docs.djangoproject.com/en/dev/releases/security/
- PATCHhttps://github.com/django/django
- PATCHhttps://www.djangoproject.com/weblog/2025/dec/02/security-releases/
- WEBhttps://docs.djangoproject.com/en/dev/releases/security
- WEBhttps://github.com/django/django/commit/0db9ea4669312f1f4973e09f4bca06ab9c1ec74b
- WEBhttps://github.com/django/django/commit/1dbd07a608e495a0c229edaaf84d58d8976313b5
- WEBhttps://github.com/django/django/commit/4d2b8803bebcdefd2b76e9e8fc528d5fddea93f0
- WEBhttps://github.com/django/django/commit/99e7d22f55497278d0bcb2e15e72ef532e62a31d
- WEBhttps://groups.google.com/g/django-announce
- WEBhttps://www.djangoproject.com/weblog/2025/dec/02/security-releases