CVE-2026-6357 — pip self-update functionality can import newly installed modules after wheel installation
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 w…
Published: 2026-04-27 · CVSS: 5.3 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7