CVE-2026-22702

MEDIUM

4.5

Description

virtualenv is a tool for creating isolated virtual python environments. Prior to version 20.36.1, TOCTOU (Time-of-Check-Time-of-Use) vulnerabilities in virtualenv allow local attackers to perform symlink-based attacks on directory creation operations. An attacker with local access can exploit a race condition between directory existence checks and creation to redirect virtualenv's app_data and lock file operations to attacker-controlled locations. This issue has been patched in version 20.36.1.

CVE Details

CVSS v3.1 Score4.5

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L

Attack VectorLOCAL

ComplexityHIGH

Privileges RequiredLOW

User InteractionNONE

Published1/10/2026

Last Modified2/18/2026

Sourcenvd

Honeypot Sightings0

Affected Products

virtualenv:virtualenv

Weaknesses (CWE)

CWE-59CWE-362

References

https://github.com/pypa/virtualenv/commit/dec4cec5d16edaf83a00a658f32d1e032661cebc(security-advisories@github.com)

https://github.com/pypa/virtualenv/pull/3013(security-advisories@github.com)

https://github.com/pypa/virtualenv/security/advisories/GHSA-597g-3phw-6986(security-advisories@github.com)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.