GHSA-jp4c-xjxw-mgf9
pip Vulnerable to Inclusion of Functionality from Untrusted Control Sphere
Packages
Details
As written in the advisory (Markdown source, shown as plain text).
pip prior to version 26.1 would run self-update check functionality after installing wheel files which required importing well-known Python modules names. These module imports were intentionally deferred to increase startup time of the pip CLI. The patch changes self-update functionality to run before wheels are installed to prevent newly-installed modules from being imported shortly after the installation of a wheel package. Users should still review package contents prior to installation.
References
External links from the advisory. They lead to third-party sites.
- https://nvd.nist.gov/vuln/detail/CVE-2026-6357
- https://github.com/pypa/pip/pull/13923
- https://github.com/pypa/pip/commit/b369bfc96cc524e00c267e1693290e6599c36bad
- https://github.com/pypa/pip
- https://ichard26.github.io/blog/2026/04/whats-new-in-pip-26.1/#security-fixes
- http://www.openwall.com/lists/oss-security/2026/04/27/7