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PYSEC-2025-109

Vulnerability from pysec - Published: 2025-12-02 16:15 - Updated: 2026-05-20 09:18
VLAI
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.

Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Impacted products
Name purl
django pkg:pypi/django
Aliases
To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "django",
        "purl": "pkg:pypi/django"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.2"
            },
            {
              "fixed": "4.2.27"
            },
            {
              "introduced": "5.1"
            },
            {
              "fixed": "5.1.15"
            },
            {
              "introduced": "5.2"
            },
            {
              "fixed": "5.2.9"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.2",
        "4.2.1",
        "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",
        "4.2.2",
        "4.2.20",
        "4.2.21",
        "4.2.22",
        "4.2.23",
        "4.2.24",
        "4.2.25",
        "4.2.26",
        "4.2.3",
        "4.2.4",
        "4.2.5",
        "4.2.6",
        "4.2.7",
        "4.2.8",
        "4.2.9",
        "5.1",
        "5.1.1",
        "5.1.10",
        "5.1.11",
        "5.1.12",
        "5.1.13",
        "5.1.14",
        "5.1.2",
        "5.1.3",
        "5.1.4",
        "5.1.5",
        "5.1.6",
        "5.1.7",
        "5.1.8",
        "5.1.9",
        "5.2",
        "5.2.1",
        "5.2.2",
        "5.2.3",
        "5.2.4",
        "5.2.5",
        "5.2.6",
        "5.2.7",
        "5.2.8"
      ]
    }
  ],
  "aliases": [
    "CVE-2025-64460",
    "GHSA-vrcr-9hj9-jcg6"
  ],
  "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.\nAlgorithmic 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`.\nEarlier, unsupported Django series (such as 5.0.x, 4.1.x, and 3.2.x) were not evaluated and may also be affected.\nDjango would like to thank Seokchan Yoon for reporting this issue.",
  "id": "PYSEC-2025-109",
  "modified": "2026-05-20T09:18:57.850793Z",
  "published": "2025-12-02T16:15:56.013Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://groups.google.com/g/django-announce"
    },
    {
      "type": "FIX",
      "url": "https://docs.djangoproject.com/en/dev/releases/security/"
    },
    {
      "type": "FIX",
      "url": "https://www.djangoproject.com/weblog/2025/dec/02/security-releases/"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-vrcr-9hj9-jcg6"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}



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