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[3.12] gh-146581: Fix vulnerability in shutil.unpack_archive() for ZIP files on Windows (GH-146591)#149066

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[3.12] gh-146581: Fix vulnerability in shutil.unpack_archive() for ZIP files on Windows (GH-146591)#149066
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@miss-islington miss-islington commented Apr 27, 2026

Use ZipFile.extractall() to sanitize file names and extract files.

Files with invalid names (e.g. absolute paths) are now skipped.

Files containing ".." in the name are no longer skipped.
(cherry picked from commit fc829e8)

Co-authored-by: Serhiy Storchaka storchaka@gmail.com

… files on Windows (pythonGH-146591)

Use ZipFile.extractall() to sanitize file names and extract files.

Files with invalid names (e.g. absolute paths) are now skipped.

Files containing ".." in the name are no longer skipped.
(cherry picked from commit fc829e8)

Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
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