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CVE-2026-12003 CPython >3.11 Insecure Input Validation resulting in privilege escalation

🗓️ 16 Jun 2026 15:18:42Reported by PSFType 
cvelist
 cvelist
🔗 www.cve.org👁 27 Views

Privilege escalation in Python builds from VPATH landmark detection on Windows enabling in-tree installs.

Related
Affected
Refs
[
  {
    "defaultStatus": "unaffected",
    "product": "CPython",
    "repo": "https://github.com/python/cpython",
    "vendor": "Python Software Foundation",
    "versions": [
      {
        "version": "0",
        "lessThan": "3.15.0b3",
        "status": "affected",
        "versionType": "python"
      }
    ]
  }
]

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