CVE-2025-64460
Potential denial-of-service vulnerability in XML serializer text extraction
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.
How to fix CVE-2025-64460
To remediate CVE-2025-64460, upgrade the affected package to a fixed version below.
- —upgrade to 4.2.27 or later
- —upgrade to 2:2.2.28-1~deb11u10 or later
- —upgrade to 5.2.9 or later
- —upgrade to 4.2.27 or later
Is CVE-2025-64460 being exploited?
Low — EPSS is 2.1%, meaning exploitation activity has not been observed at scale.
Affected packages (4)
- >= 4.2.0, < 4.2.27, >= 5.1.0, < 5.1.15, >= 5.2.0, < 5.2.9
- from 0, < 2:2.2.28-1~deb11u10
- >= 5.2a1, < 5.2.9
- >= 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 |