---
id: CVE-2025-64460
aliases:
  - GHSA-vrcr-9hj9-jcg6
  - BIT-django-2025-64460
  - PYSEC-2025-109
title: Django is vulnerable to DoS via XML serializer text extraction
summary: Django is vulnerable to DoS via XML serializer text extraction
severity: medium
vendor: django
product: django
ecosystem: pip
affected:
  - 'django >= 5.2a1, < 5.2.9'
  - 'django >= 5.1a1, < 5.1.15'
  - 'django >= 4.2a1, < 4.2.27'
patched:
  - django 5.2.9
  - django 5.1.15
  - django 4.2.27
published: '2025-12-02'
updated: '2026-09-10'
sourceUpdated: '2026-09-10T03:50:32.172789182Z'
source: OSV
sourceUrl: 'https://osv.dev/vulnerability/GHSA-vrcr-9hj9-jcg6'
references:
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2025-64460'
  - url: >-
      https://github.com/django/django/commit/0db9ea4669312f1f4973e09f4bca06ab9c1ec74b
  - url: >-
      https://github.com/django/django/commit/1dbd07a608e495a0c229edaaf84d58d8976313b5
  - url: >-
      https://github.com/django/django/commit/4d2b8803bebcdefd2b76e9e8fc528d5fddea93f0
  - url: >-
      https://github.com/django/django/commit/99e7d22f55497278d0bcb2e15e72ef532e62a31d
  - url: 'https://docs.djangoproject.com/en/dev/releases/security'
  - url: 'https://github.com/django/django'
  - url: >-
      https://github.com/pypa/advisory-database/tree/main/vulns/django/PYSEC-2025-109.yaml
  - url: 'https://groups.google.com/g/django-announce'
  - url: 'https://www.djangoproject.com/weblog/2025/dec/02/security-releases'
tags:
  - osv
  - pip
epss: 0.02085
epssPercentile: 0.80744
ingestedAt: '2026-09-12T03:13:01.731Z'
---

## Overview

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

- `django >= 5.2a1, < 5.2.9`
- `django >= 5.1a1, < 5.1.15`
- `django >= 4.2a1, < 4.2.27`

## Remediation

Upgrade to a patched release:

- `django 5.2.9`
- `django 5.1.15`
- `django 4.2.27`