CVE-2025-71437: high-severity vulnerability in astral-sh uv
Astral uv through 0.8.21 Path Traversal via Symlinks in Sdist Tar Extraction
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.7epss 0.3%
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.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Affected products
astral-sh · uvRelated CVEs — astral-sh uv
In the same product, most dangerous first.
CVE-2026-104843MEDIUMuv: Path traversal on Windows through wheel extractionEPSS 0.4%CVE-2026-114109HIGHuv before 0.11.15 Arbitrary File Write via Entry Point NamesEPSS 0.4%CVE-2026-114110HIGHAstral uv before 0.11.6 Arbitrary File Deletion via Wheel RECORD EntriesEPSS 0.3%CVE-2025-54368MEDIUMuv is vulnerable to ZIP payload obfuscation through parsing differentialsEPSS 0.2%CVE-2025-13327MEDIUMUv: uv: specially crafted zip archives lead to arbitrary code execution due to parsing differentialsEPSS 0.2%