CVE-2026-4360lowCWE-281

CVE-2026-4360: low-severity vulnerability in Python Software Foundation CPython

Tarfile.extract() doesn't fully respect filter parameter

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8Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 2epss 0.5%
In the Tarfile.extract() function, the filter parameter is not passed properly when extracting hardlinks. An affected system that extracts content from untrusted tar files could end up writing files with an unexpected uid/gid despite the user passing filter='data' to the extract() function.
CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
Affected products
Python Software Foundation · CPython
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