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Title: gh-146581: Fix vulnerability in shutil.unpack_archive() for ZIP files on Windows by serhiy-storchaka · Pull Request #146591 · python/cpython · GitHub

Open Graph Title: gh-146581: Fix vulnerability in shutil.unpack_archive() for ZIP files on Windows by serhiy-storchaka · Pull Request #146591 · python/cpython

X Title: gh-146581: Fix vulnerability in shutil.unpack_archive() for ZIP files on Windows by serhiy-storchaka · Pull Request #146591 · python/cpython

Description: The Python programming language. Contribute to python/cpython development by creating an account on GitHub.

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/146591

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gh-146581: Fix vulnerability in shutil.unpack_archive() for ZIP files on Windowshttps://github.com/python/cpython/pull/146591#top
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shutil.unpack_archive() on Windows writes outside extract_dir for ZIP entries with drive-prefixed names #146581https://github.com/python/cpython/issues/146581
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February 27, 2026 12:11https://github.com/python/cpython/pull/146591#commits-pushed-7c5ad11
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Fix vulnerability in shutil.unpack_archive() in ZIP fileshttps://github.com/python/cpython/pull/146591/commits/7c5ad11510c5d31e8f18fd61bef21638c61ed314
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Preserve the current behavior whether it is possible.https://github.com/python/cpython/pull/146591/commits/8d0ade51ba0ed9642701fb4831c8f429fc923452
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Preserve the current behavior whether it is possible.https://github.com/python/cpython/pull/146591/commits/79400843e5e0cfbd64d6b466bfdd9d1a6461dd1f
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Merge remote-tracking branch 'refs/remotes/origin/shutil-unpack_archi…https://github.com/python/cpython/pull/146591/commits/faddc6721d63249b304f8a0ffe71d5722f8fb445
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Merge branch 'main' into shutil-unpack_archive-extractallhttps://github.com/python/cpython/pull/146591/commits/76797cc65c047e7b08221479d12a15550028f66b
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Apr 27, 2026https://github.com/python/cpython/pull/146591#event-24920847303
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gh-146581https://github.com/python/cpython/issues/146581
: Fix vulnerability in shutil.unpack_archive() for ZI…https://github.com/python/cpython/commit/ab5ef98af693bded74a738570e81ea70abef2840
ab5ef98https://github.com/python/cpython/commit/ab5ef98af693bded74a738570e81ea70abef2840
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Apr 27, 2026 https://github.com/python/cpython/pull/146591#ref-commit-b01e594
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[3.14]https://github.com/python/cpython/commit/b01e594fbe754a960212f908d047294e880b52fd
gh-146581https://github.com/python/cpython/issues/146581
: Fix vulnerability in shutil.unpack_archive() for ZI…https://github.com/python/cpython/commit/b01e594fbe754a960212f908d047294e880b52fd
b01e594https://github.com/python/cpython/commit/b01e594fbe754a960212f908d047294e880b52fd
GH-146591https://github.com/python/cpython/pull/146591
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fc829e8https://github.com/python/cpython/commit/fc829e88753858c8ac669594bf0093f44948c0f4
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needs backport to 3.10 https://github.com/python/cpython/issues?q=state%3Aopen%20label%3A%22needs%20backport%20to%203.10%22
Apr 27, 2026https://github.com/python/cpython/pull/146591#event-24920892854
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gh-111791: delegating extraction to zipfile module's extractall() method #111824 https://github.com/python/cpython/pull/111824
shutil.unpack_archive skips false negatives containing '..' #111791 https://github.com/python/cpython/issues/111791
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Jun 3, 2026 https://github.com/python/cpython/pull/146591#ref-issue-4583078123
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Jun 3, 2026 https://github.com/python/cpython/pull/146591#ref-commit-448cb74
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448cb74https://github.com/gaborbernat/cpython/commit/448cb743a3cec0a4fd9c6bfdb166eed99cc1a69e
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gh-150885: Remove unused shutil._ensure_directory #150883 https://github.com/python/cpython/pull/150883
Remove unused private function shutil._ensure_directory #150885 https://github.com/python/cpython/issues/150885
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gh-150885https://github.com/python/cpython/issues/150885
: Remove unused shutil._ensure_directory (https://github.com/python/cpython/commit/e5ced1f7788e77e318165b331d967156f81d6709
GH-150883https://github.com/python/cpython/pull/150883
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pythonGH-150883https://github.com/python/cpython/pull/150883
77b5cd3https://github.com/philthompson10/cpython/commit/77b5cd375bd74cdca0f63d8e843bd34f80b24833
https://github.com/python/cpython/pull/150883
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