CVE-2026-1703

Limited path traversal when installing wheel archives

CVSS 2 LOWEPSS 0.4%CWE-22

When pip is installing and extracting a maliciously crafted wheel archive, files may be extracted outside the installation directory. The path traversal is limited to prefixes of the installation directory, thus isn't able to inject or overwrite executable files in typical situations.

CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

Affected products

Python Packaging Authority · pip

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References

https://github.com/pypa/pip/commit/8e227a9be4faa9594e05d02ca05a413a2a4e7735 https://github.com/pypa/pip/pull/13777 https://mail.python.org/archives/list/security-announce@python.org/thread/WIEA34D4TABF2UNQJAOMXKCICSPBE2DJ/