BIT-VIRTUALENV-2026-102930 virtualenv: Downloaded seed wheels (pip/setuptools) are not integrity-checked before use

virtualenv is a tool for creating isolated virtual python environments. Prior to 21.7.12, downloadwheel accepts pip and setuptools seed wheels fetched for periodic updates or the --download option without checking their bytes against an authoritative digest equivalent to the embedded wheels'...

virtualenv: Downloaded seed wheels (pip/setuptools) are not integrity-checked before use

downloadwheel runs pip download and hands the result straight to the seeder, with nothing checking the bytes it gets back. The embedded pip and setuptools wheels carry a BUNDLESHA256 that virtualenv checks on every load, but a wheel fetched over the network for the periodic-update feature or the...

EUVD-2026-89462

virtualenv: Downloaded seed wheels pip/setuptools are not integrity-checked before use...

CVE-2026-102930

virtualenv is a tool for creating isolated virtual python environments. Prior to 21.7.12, downloadwheel accepts pip and setuptools seed wheels fetched for periodic updates or the --download option without checking their bytes against an authoritative digest equivalent to the embedded wheels'...

CVE-2026-102930 virtualenv: Downloaded seed wheels (pip/setuptools) are not integrity-checked before use

virtualenv is a tool for creating isolated virtual python environments. Prior to 21.7.12, downloadwheel accepts pip and setuptools seed wheels fetched for periodic updates or the --download option without checking their bytes against an authoritative digest equivalent to the embedded wheels'...

CVE-2026-102930

The virtualenv tool (prior to version 21.7.12 ) is vulnerable to a supply chain attack due to a lack of integrity verification in the download_wheel() function. When fetching pip and setuptools seed wheels for periodic updates or via the --download option, the software fails to verify the bytes a...

CVE-2026-102930 virtualenv: Downloaded seed wheels (pip/setuptools) are not integrity-checked before use

virtualenv is a tool for creating isolated virtual python environments. Prior to 21.7.12, downloadwheel accepts pip and setuptools seed wheels fetched for periodic updates or the --download option without checking their bytes against an authoritative digest equivalent to the embedded wheels'...