[pull] main from python:main#1042
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pull[bot] merged 5 commits intotj-python:mainfrom May 8, 2026
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The data filter rewrote linknames with normpath() but ran the containment check against the un-normalised value, and computed a symlink's directory before stripping trailing slashes. Both let a crafted archive create links pointing outside the destination. Also reject link members that resolve to the destination directory itself, which could otherwise replace it with a symlink and redirect all subsequent members. (Patch by Greg; Petr's just reviewing & merging.) Co-authored-by: Gregory P. Smith <greg@krypto.org>
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