{"id":"DEBIAN-CVE-2026-102930","details":"virtualenv is a tool for creating isolated virtual python environments. Prior to 21.7.12, download_wheel() 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' BUNDLE_SHA256 verification. A compromised index, stale mirror, or intercepted TLS connection can substitute a different wheel under the requested distribution, version, and filename, after which virtualenv caches and seeds the attacker-controlled wheel into subsequently created environments. The verification applies to the default PyPI path and is intentionally skipped when PIP_INDEX_URL, PIP_EXTRA_INDEX_URL, or PIP_INDEX configures a custom index that may legitimately publish rebuilt wheels. This issue is fixed in version 21.7.12.","modified":"2026-10-01T08:47:37.872768682Z","published":"2026-09-29T21:17:18.740Z","upstream":["CVE-2026-102930"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-102930"}],"affected":[{"package":{"name":"python-virtualenv","ecosystem":"Debian:12","purl":"pkg:deb/debian/python-virtualenv?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["20.17.1+ds-1","20.19.0+ds-1","20.21.0+ds-1","20.23.0+ds-1","20.23.0+ds-2","20.24.1+ds-1","20.24.6+ds-1","20.24.6+ds-2","20.25.0+ds-1","20.25.0+ds-2","20.25.1+ds-1","20.26.1+ds-1","20.26.2+ds-1","20.26.6+ds-1","20.27.0+ds-1","20.28.0+ds-1","20.29.1+ds-1","20.29.3+ds-1","20.30.0+ds-1","20.30.0+ds-2","20.30.0+ds-3","20.31.2+ds-1","20.33.1+ds-1","20.34.0+ds-1","20.35.3+ds-1","20.35.4+ds-1","20.36.1+ds-1","20.38.0+ds-1","21.2.0+ds-1","21.2.4+ds-1","21.3.1+ds-1","21.4.1+ds-1","21.5.1+ds-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-102930.json"}},{"package":{"name":"python-virtualenv","ecosystem":"Debian:13","purl":"pkg:deb/debian/python-virtualenv?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["20.31.2+ds-1","20.31.2+ds-1+deb13u1","20.33.1+ds-1","20.34.0+ds-1","20.35.3+ds-1","20.35.4+ds-1","20.36.1+ds-1","20.38.0+ds-1","21.2.0+ds-1","21.2.4+ds-1","21.3.1+ds-1","21.4.1+ds-1","21.5.1+ds-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-102930.json"}},{"package":{"name":"python-virtualenv","ecosystem":"Debian:14","purl":"pkg:deb/debian/python-virtualenv?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["20.31.2+ds-1","20.33.1+ds-1","20.34.0+ds-1","20.35.3+ds-1","20.35.4+ds-1","20.36.1+ds-1","20.38.0+ds-1","21.2.0+ds-1","21.2.4+ds-1","21.3.1+ds-1","21.4.1+ds-1","21.5.1+ds-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-102930.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"}]}