CVE-2026-113717

virtualenv is a tool for creating isolated virtual python environments. Prior to 21.14.9, PipInvoke.get_pip_install_cmd() handles --seeder pip --download by calling get_wheel(download=False) and then allowing pip to consult the configured index, bypassing virtualenv's download_wheel() and verify_wheel_digest() path. When virtualenv's default-index PyPI digest comparison remains enabled, an index candidate matching the bundled package and version can therefore be selected without comparison to PyPI SHA-256 metadata. Explicit custom-index settings already opt out of that comparison and remain outside this verification-bypass claim; the demonstrated configuration used a non-PyPI index while leaving the index environment variables unset so the comparison policy remained active. This condition does not independently defeat TLS or establish control of the index response. This issue is fixed in version 21.14.9.

CVSS

No CVSS.

References

Link	Resource
https://github.com/pypa/virtualenv/commit/7babec66e043e1cc8bc66869a063653898719d96
https://github.com/pypa/virtualenv/pull/3430
https://github.com/pypa/virtualenv/releases/tag/21.14.9
https://github.com/pypa/virtualenv/security/advisories/GHSA-cx28-75q4-x26q
https://github.com/pypa/virtualenv/security/advisories/GHSA-cx28-75q4-x26q

Configurations

No configuration.

History

20 Oct 2026, 20:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-20 20:17

Updated : 2026-10-22 16:47

NVD link : CVE-2026-113717

Mitre link : CVE-2026-113717

CVE.ORG link : CVE-2026-113717

JSON object : View

Products Affected

No product.

CWE

CWE-494

Download of Code Without Integrity Check

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