PYSEC-2025-109

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Import Source
https://github.com/pypa/advisory-database/blob/main/vulns/django/PYSEC-2025-109.yaml
JSON Data
https://api.test.osv.dev/v1/vulns/PYSEC-2025-109
Aliases
Published
2025-12-02T16:15:56.013Z
Modified
2026-05-20T09:18:57.850793Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

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.

References

Affected packages

PyPI / django

Package

Affected ranges

Type
ECOSYSTEM
Events
Introduced
4.2
Fixed
4.2.27
Introduced
5.1
Fixed
5.1.15
Introduced
5.2
Fixed
5.2.9

Affected versions

4.*
4.2
4.2.1
4.2.2
4.2.3
4.2.4
4.2.5
4.2.6
4.2.7
4.2.8
4.2.9
4.2.10
4.2.11
4.2.12
4.2.13
4.2.14
4.2.15
4.2.16
4.2.17
4.2.18
4.2.19
4.2.20
4.2.21
4.2.22
4.2.23
4.2.24
4.2.25
4.2.26
5.*
5.1
5.1.1
5.1.2
5.1.3
5.1.4
5.1.5
5.1.6
5.1.7
5.1.8
5.1.9
5.1.10
5.1.11
5.1.12
5.1.13
5.1.14
5.2
5.2.1
5.2.2
5.2.3
5.2.4
5.2.5
5.2.6
5.2.7
5.2.8

Database specific

source
"https://github.com/pypa/advisory-database/blob/main/vulns/django/PYSEC-2025-109.yaml"