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CVE-2025-4138 Bypassing extraction filter to create symlinks to arbitrary targets outside extraction directory

🗓️ 03 Jun 2025 12:59:02Reported by PSFType 
cvelist
 cvelist
🔗 www.cve.org👁 15 Views

CVE-2025-4138 allows symlinks outside tar extraction directory, affecting Python 3.12+ users.

Related
Affected
Refs
[
  {
    "defaultStatus": "unaffected",
    "modules": [
      "tarfile"
    ],
    "product": "CPython",
    "repo": "https://github.com/python/cpython",
    "vendor": "Python Software Foundation",
    "versions": [
      {
        "version": "0",
        "lessThan": "3.10.18",
        "status": "affected",
        "versionType": "python"
      },
      {
        "version": "3.11.0",
        "lessThan": "3.11.13",
        "status": "affected",
        "versionType": "python"
      },
      {
        "version": "3.12.0",
        "lessThan": "3.12.11",
        "status": "affected",
        "versionType": "python"
      },
      {
        "version": "3.13.0",
        "lessThan": "3.13.4",
        "status": "affected",
        "versionType": "python"
      },
      {
        "version": "3.14.0a1",
        "lessThan": "3.14.0b3",
        "status": "affected",
        "versionType": "python"
      }
    ]
  }
]

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