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Title: [3.12] gh-146581: Fix vulnerability in shutil.unpack_archive() for ZIP files on Windows (GH-146591) by miss-islington · Pull Request #149066 · python/cpython · GitHub

Open Graph Title: [3.12] gh-146581: Fix vulnerability in shutil.unpack_archive() for ZIP files on Windows (GH-146591) by miss-islington · Pull Request #149066 · python/cpython

X Title: [3.12] gh-146581: Fix vulnerability in shutil.unpack_archive() for ZIP files on Windows (GH-146591) by miss-islington · Pull Request #149066 · python/cpython

Description: 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 Issue: gh-146581

Open Graph Description: 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....

X Description: 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 ...

Opengraph URL: https://github.com/python/cpython/pull/149066

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52a4f9a gh-146581: Fix vulnerability in shutil.unpack_archive() for ZIP files… serhiy-storchaka Apr 27, 2026 https://github.com/python/cpython/pull/149066/commits/52a4f9ac6570e1838db9a547f14be295794411ee
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