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CVE-2024-12718 – Python Tarfile Filter File Metadata and Permission Modification Vulnerability

The following table lists the changes that have been made to the
CVE-2024-12718 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution
of a vulnerability, and for identifying the most recent changes that may
impact the vulnerability’s severity, exploitability, or other characteristics.

  • CVE Modified
    by [email protected]

    Jun. 03, 2025

    Action Type Old Value New Value
    Added CVSS V4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
    Removed CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
    Added Reference https://gist.github.com/sethmlarson/52398e33eff261329a0180ac1d54f42f
    Added Reference https://github.com/python/cpython/commit/3612d8f51741b11f36f8fb0494d79086bac9390a
    Added Reference https://github.com/python/cpython/commit/9e0ac76d96cf80b49055f6d6b9a6763fb9215c2a
    Added Reference https://mail.python.org/archives/list/[email protected]/thread/MAXIJJCUUMCL7ATZNDVEGGHUMQMUUKLG/
  • New CVE Received
    by [email protected]

    Jun. 03, 2025

    Action Type Old Value New Value
    Added Description Allows modifying some file metadata (e.g. last modified) with filter=”data” or file permissions (chmod) with filter=”tar” of files outside the extraction directory.
    You are affected by this vulnerability if using the tarfile module to extract untrusted tar archives using TarFile.extractall() or TarFile.extract() using the filter= parameter with a value of “data” or “tar”. See the tarfile extraction filters documentation https://docs.python.org/3/library/tarfile.html#tarfile-extraction-filter  for more information. Only Python versions 3.12 or later are affected by these vulnerabilities, earlier versions don’t include the extraction filter feature.

    Note that for Python 3.14 or later the default value of filter= changed from “no filtering” to `”data”, so if you are relying on this new default behavior then your usage is also affected.

    Note that none of these vulnerabilities significantly affect the installation of source distributions which are tar archives as source distributions already allow arbitrary code execution during the build process. However when evaluating source distributions it’s important to avoid installing source distributions with suspicious links.
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
    Added CWE CWE-22
    Added Reference https://github.com/python/cpython/issues/127987
    Added Reference https://github.com/python/cpython/issues/135034
    Added Reference https://github.com/python/cpython/pull/135037
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