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CVE-2026-22702

Published: Jan 10, 2026

Modified: Jan 12, 2026

PUBLISHED

CVSS v3.1

4.5

MEDIUM

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.

Vendor	Product	Versions
pypa	virtualenv	affected `< 20.36.1`

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

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

Attack Vector

Local

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

Low

References

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

x_refsource_CONFIRM

https://github.com/pypa/virtualenv/pull/3013

x_refsource_MISC

https://github.com/pypa/virtualenv/commit/dec4cec5d16edaf83a00a658f32d1e032661cebc

x_refsource_MISC

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