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cpython: python: Bypass extraction filter to modify file metadata outside extraction directory

🗓️ 07 Jul 2025 11:25:51Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 8 Views

Flaw in CPython tarfile allows bypassing extraction filters to modify metadata outside the target directory.

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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux9.4noarchpython-unversioned-command3.9.18-3.el9_4.8python-unversioned-command-3.9.18-3.el9_4.8.noarch.rpm
Red Hat Enterprise Linux9.4aarch64python33.9.18-3.el9_4.8python3-3.9.18-3.el9_4.8.aarch64.rpm
Red Hat Enterprise Linux9.4i686python33.9.18-3.el9_4.8python3-3.9.18-3.el9_4.8.i686.rpm
Red Hat Enterprise Linux9.4ppc64lepython33.9.18-3.el9_4.8python3-3.9.18-3.el9_4.8.ppc64le.rpm
Red Hat Enterprise Linux9.4s390xpython33.9.18-3.el9_4.8python3-3.9.18-3.el9_4.8.s390x.rpm
Red Hat Enterprise Linux9.4x86_64python33.9.18-3.el9_4.8python3-3.9.18-3.el9_4.8.x86_64.rpm
Red Hat Enterprise Linux9.4aarch64python3-debug3.9.18-3.el9_4.8python3-debug-3.9.18-3.el9_4.8.aarch64.rpm
Red Hat Enterprise Linux9.4i686python3-debug3.9.18-3.el9_4.8python3-debug-3.9.18-3.el9_4.8.i686.rpm
Red Hat Enterprise Linux9.4ppc64lepython3-debug3.9.18-3.el9_4.8python3-debug-3.9.18-3.el9_4.8.ppc64le.rpm
Red Hat Enterprise Linux9.4s390xpython3-debug3.9.18-3.el9_4.8python3-debug-3.9.18-3.el9_4.8.s390x.rpm
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18 Jul 2026 20:34Current
7.1High risk
Vulners AI Score7.1
CVSS 3.15.3
EPSS0.00637
SSVC
CWE-22
cpython tarfile flawbypass extraction filtersmodify file metadataoutside extraction directory
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