{"id":"AZL-105669","summary":"CVE-2026-102930 affecting package python-virtualenv 20.36.1-6","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":"2026-10-05T05:34:30Z","published":"2026-09-29T21:17:18Z","upstream":["CVE-2026-102930"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-102930"}],"affected":[{"package":{"name":"python-virtualenv","ecosystem":"Azure Linux:3","purl":"pkg:rpm/azure-linux/python-virtualenv"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"20.36.1-6"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-105669.json"}}],"schema_version":"1.9.0"}