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CVE-2026-22702

NVD

https://nvd.nist.gov/vuln/detail/CVE-2026-22702

Severity

4.5

Medium

CVSS V3

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Summary

virtualenv Has TOCTOU Vulnerabilities in Directory Creation

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.

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