CVE-2026-102930

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.

CVSS

No CVSS.

References

Link	Resource
https://github.com/pypa/virtualenv/commit/a01ed3e2f239d6ab1fce62c5c7664ccf268fff6d
https://github.com/pypa/virtualenv/pull/3251
https://github.com/pypa/virtualenv/security/advisories/GHSA-94p9-xgh2-xp45

Configurations

No configuration.

History

29 Sep 2026, 21:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-29 21:17

Updated : 2026-09-30 19:38

NVD link : CVE-2026-102930

Mitre link : CVE-2026-102930

CVE.ORG link : CVE-2026-102930

JSON object : View

Products Affected

No product.

CWE

CWE-494

Download of Code Without Integrity Check

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