NVD - CVE-2026-22702 (original) (raw)
CVE-2026-22702 Detail
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.
Metrics
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:
NIST: NVD
N/A
NVD assessment not yet provided.
CVSS 3.x Severity and Vector Strings:
NIST: NVD
Base Score: N/A
NVD assessment not yet provided.
CNA: GitHub, Inc.
Base Score: 4.5 MEDIUM
Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L
CVSS 2.0 Severity and Vector Strings:
NIST: NVD
Base Score: N/A
NVD assessment not yet provided.
References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving NIST webspace. We have provided these links to other web sites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other web sites that are more appropriate for your purpose. NIST does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, NIST does not endorse any commercial products that may be mentioned on these sites. Please address comments about this page to [email protected].
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/pypa/virtualenv/commit/dec4cec5d16edaf83a00a658f32d1e032661cebc | GitHub, Inc. | Patch |
| https://github.com/pypa/virtualenv/pull/3013 | GitHub, Inc. | Issue Tracking Patch |
| https://github.com/pypa/virtualenv/security/advisories/GHSA-597g-3phw-6986 | GitHub, Inc. | Mitigation Patch Vendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-59 | Improper Link Resolution Before File Access ('Link Following') | GitHub, Inc. |
| CWE-362 | Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') | GitHub, Inc. |
Known Affected Software Configurations Switch to CPE 2.2
CPEs loading, please wait.
Denotes Vulnerable Software
Are we missing a CPE here? Please let us know.
Change History
2 change records found show changes
Initial Analysis by NIST 2/18/2026 12:43:08 PM
| Action | Type | Old Value | New Value |
|---|---|---|---|
| Added | CPE Configuration | OR *cpe:2.3:a:virtualenv:virtualenv:*:*:*:*:*:*:*:* versions up to (excluding) 20.36.1 | |
| Added | Reference Type | GitHub, Inc.: https://github.com/pypa/virtualenv/commit/dec4cec5d16edaf83a00a658f32d1e032661cebc Types: Patch | |
| Added | Reference Type | GitHub, Inc.: https://github.com/pypa/virtualenv/pull/3013 Types: Issue Tracking, Patch | |
| Added | Reference Type | GitHub, Inc.: https://github.com/pypa/virtualenv/security/advisories/GHSA-597g-3phw-6986 Types: Mitigation, Patch, Vendor Advisory |
New CVE Received from GitHub, Inc. 1/10/2026 2:16:02 AM
| Action | Type | Old Value | New Value |
|---|---|---|---|
| Added | 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. | |
| Added | CVSS V3.1 | AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L | |
| Added | CWE | CWE-59 | |
| Added | CWE | CWE-362 | |
| Added | Reference | https://github.com/pypa/virtualenv/commit/dec4cec5d16edaf83a00a658f32d1e032661cebc | |
| Added | Reference | https://github.com/pypa/virtualenv/pull/3013 | |
| Added | Reference | https://github.com/pypa/virtualenv/security/advisories/GHSA-597g-3phw-6986 |
Quick Info
CVE Dictionary Entry:
CVE-2026-22702
NVD Published Date:
01/10/2026
NVD Last Modified:
02/18/2026
Source:
GitHub, Inc.