{
  "modified": "2026-01-26T14:18:29.104Z",
  "published": "2025-12-03T18:55:32.222Z",
  "schema_version": "1.5.0",
  "id": "PSF-2025-16",
  "aliases": [
    "CVE-2025-12084"
  ],
  "details": "When building nested elements using xml.dom.minidom methods such as appendChild() that have a dependency on _clear_id_cache() the algorithm is quadratic. Availability can be impacted when building excessively nested documents.",
  "affected": [
    {
      "ranges": [
        {
          "type": "GIT",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "08d8e18ad81cd45bc4a27d6da478b51ea49486e4"
            },
            {
              "fixed": "027f21e417b26eed4505ac2db101a4352b7c51a0"
            },
            {
              "fixed": "ddcd2acd85d891a53e281c773b3093f9db953964"
            },
            {
              "fixed": "27648a1818749ef44c420afe6173af6868715437"
            },
            {
              "fixed": "8d2d7bb2e754f8649a68ce4116271a4932f76907"
            },
            {
              "fixed": "9c9dda6625a2a90d2a06c657eee021d6be19842d"
            },
            {
              "fixed": "a696ba8b4d42fd632afc9bc88ad830a2e4cceed8"
            },
            {
              "fixed": "41f468786762348960486c166833a218a0a436af"
            },
            {
              "fixed": "57937a8e5e293f0dcba5115f7b7a11b1e0c9a273"
            },
            {
              "fixed": "e91c11449cad34bac3ea55ee09ca557691d92b53"
            },
            {
              "fixed": "a46c10ec9d4050ab67b8a932e0859a2ea60c3cb8"
            },
            {
              "fixed": "c97e87593063d84a2bd9fe7068b30eb44de23dc0"
            }
          ],
          "repo": "https://github.com/python/cpython"
        }
      ]
    }
  ],
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/python/cpython/pull/142146"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/python/cpython/issues/142145"
    },
    {
      "type": "FIX",
      "url": "https://github.com/python/cpython/commit/08d8e18ad81cd45bc4a27d6da478b51ea49486e4"
    },
    {
      "type": "FIX",
      "url": "https://github.com/python/cpython/commit/027f21e417b26eed4505ac2db101a4352b7c51a0"
    },
    {
      "type": "FIX",
      "url": "https://github.com/python/cpython/commit/ddcd2acd85d891a53e281c773b3093f9db953964"
    },
    {
      "type": "FIX",
      "url": "https://github.com/python/cpython/commit/27648a1818749ef44c420afe6173af6868715437"
    },
    {
      "type": "FIX",
      "url": "https://github.com/python/cpython/commit/8d2d7bb2e754f8649a68ce4116271a4932f76907"
    },
    {
      "type": "FIX",
      "url": "https://github.com/python/cpython/commit/9c9dda6625a2a90d2a06c657eee021d6be19842d"
    },
    {
      "type": "FIX",
      "url": "https://github.com/python/cpython/commit/a696ba8b4d42fd632afc9bc88ad830a2e4cceed8"
    },
    {
      "type": "FIX",
      "url": "https://github.com/python/cpython/commit/41f468786762348960486c166833a218a0a436af"
    },
    {
      "type": "FIX",
      "url": "https://github.com/python/cpython/commit/57937a8e5e293f0dcba5115f7b7a11b1e0c9a273"
    },
    {
      "type": "FIX",
      "url": "https://github.com/python/cpython/commit/e91c11449cad34bac3ea55ee09ca557691d92b53"
    },
    {
      "type": "FIX",
      "url": "https://github.com/python/cpython/commit/a46c10ec9d4050ab67b8a932e0859a2ea60c3cb8"
    },
    {
      "type": "FIX",
      "url": "https://github.com/python/cpython/commit/c97e87593063d84a2bd9fe7068b30eb44de23dc0"
    }
  ],
  "database_specific": {
    "cwe_ids": []
  }
}