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CVE-2026-4360 Tarfile.extract() doesn't fully respect filter parameter

🗓️ 30 Jun 2026 14:45:35Reported by PSFType 
cvelist
 cvelist
🔗 www.cve.org👁 141 Views

Tarfile.extract does not pass filter for hardlinks, risking wrong uid and gid.

Related
Affected
Refs
[
  {
    "defaultStatus": "unaffected",
    "modules": [
      "tarfile"
    ],
    "product": "CPython",
    "repo": "https://github.com/python/cpython",
    "vendor": "Python Software Foundation",
    "versions": [
      {
        "version": "0",
        "lessThan": "3.10.21",
        "status": "affected",
        "versionType": "python"
      },
      {
        "version": "3.11.0",
        "lessThan": "3.11.16",
        "status": "affected",
        "versionType": "python"
      },
      {
        "version": "3.12.0",
        "lessThan": "3.12.14",
        "status": "affected",
        "versionType": "python"
      },
      {
        "version": "3.13.0",
        "lessThan": "3.13.15",
        "status": "affected",
        "versionType": "python"
      },
      {
        "version": "3.14.0",
        "lessThan": "3.14.7",
        "status": "affected",
        "versionType": "python"
      },
      {
        "version": "3.15.0a1",
        "lessThan": "3.15.0b4",
        "status": "affected",
        "versionType": "python"
      }
    ]
  }
]

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13 Aug 2026 00:27Current
CVSS 42
EPSS0.00277
141