CVE-2026-22702

Name of the Vulnerable Software and Affected Versions virtualenv versions prior to 20.36.1

Description virtualenv is a tool for creating isolated virtual python environments. Prior to version 20.36.1, Time-of-Check-Time-of-Use (TOCTOU) vulnerabilities exist in virtualenv that 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. The vulnerability affects the directory creation operations.

Recommendations Update virtualenv to version 20.36.1 or later.