Medium severity6.5NVD Advisory· Published Oct 21, 2026
CVE-2025-71437
CVE-2025-71437
Description
Astral uv before 0.8.22 contains a path traversal vulnerability in source distribution (sdist) tar extraction that allows a specially crafted sequence of symlinks to redirect file writes outside the intended extraction prefix. Attackers can publish a malicious sdist that, when installed by a victim, writes arbitrary files to filesystem locations outside the installation prefix.
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Affected products
1Patches
Vulnerability mechanics
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