CVE-2025-4435 – TarFile Errorlevel Extraction Vulnerability

The following table lists the changes that have been made to the
CVE-2025-4435 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 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 When using a TarFile.errorlevel = 0 and extracting with a filter the documented behavior is that any filtered members would be skipped and not extracted. However the actual behavior of TarFile.errorlevel = 0 in affected versions is that the member would still be extracted and not skipped.
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
    Added Reference https://github.com/python/cpython/issues/135034
    Added Reference https://github.com/python/cpython/pull/135037
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