CVE-2026-47137: CWE-913: Improper Control of Dynamically-Managed Code Resources in patriksimek vm2
vm2 is an open source vm/sandbox for Node.js. Prior to version 3.11.4, the fix for GHSA-8hg8-63c5-gwmx (CVE-2023-37903) introduced a check in nodevm.js line 263 that blocks the combination nesting: true + require: false. However, the check uses strict equality (options.require === false), which is trivially bypassed by omitting the require option entirely. When require is not specified, options.require is undefined, not false. The strict equality check fails, so the security guard is skipped. Immediately after (line 280), the destructuring default require: requireOpts = false assigns requireOpts = false, producing the exact configuration the patch was designed to prevent. This issue has been patched in version 3.11.4.
AI Analysis
Technical Summary
The vulnerability in vm2 arises from an improper control of dynamically-managed code resources (CWE-913). The patch for CVE-2023-37903 introduced a check that blocks the combination of nesting: true and require: false by testing if options.require === false. However, if the require option is omitted, options.require is undefined, causing the strict equality check to fail and the security guard to be bypassed. Subsequently, a destructuring assignment sets requireOpts to false by default, enabling the insecure configuration the patch was meant to prevent. This flaw allows an attacker to circumvent sandbox restrictions. The issue is addressed in vm2 version 3.11.4.
Potential Impact
This vulnerability allows bypassing sandbox restrictions in vm2, potentially enabling execution of unauthorized code or escalation of privileges within the sandbox environment. The CVSS score of 10.0 indicates critical impact with network attack vector, low attack complexity, no privileges or user interaction required, and complete confidentiality, integrity, and availability impact.
Mitigation Recommendations
A fix is available in vm2 version 3.11.4. Users should upgrade to version 3.11.4 or later to remediate this vulnerability. No other mitigations are indicated by the vendor advisory.
CVE-2026-47137: CWE-913: Improper Control of Dynamically-Managed Code Resources in patriksimek vm2
Description
vm2 is an open source vm/sandbox for Node.js. Prior to version 3.11.4, the fix for GHSA-8hg8-63c5-gwmx (CVE-2023-37903) introduced a check in nodevm.js line 263 that blocks the combination nesting: true + require: false. However, the check uses strict equality (options.require === false), which is trivially bypassed by omitting the require option entirely. When require is not specified, options.require is undefined, not false. The strict equality check fails, so the security guard is skipped. Immediately after (line 280), the destructuring default require: requireOpts = false assigns requireOpts = false, producing the exact configuration the patch was designed to prevent. This issue has been patched in version 3.11.4.
CVSS v3.1
Score 10.0critical
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability in vm2 arises from an improper control of dynamically-managed code resources (CWE-913). The patch for CVE-2023-37903 introduced a check that blocks the combination of nesting: true and require: false by testing if options.require === false. However, if the require option is omitted, options.require is undefined, causing the strict equality check to fail and the security guard to be bypassed. Subsequently, a destructuring assignment sets requireOpts to false by default, enabling the insecure configuration the patch was meant to prevent. This flaw allows an attacker to circumvent sandbox restrictions. The issue is addressed in vm2 version 3.11.4.
Potential Impact
This vulnerability allows bypassing sandbox restrictions in vm2, potentially enabling execution of unauthorized code or escalation of privileges within the sandbox environment. The CVSS score of 10.0 indicates critical impact with network attack vector, low attack complexity, no privileges or user interaction required, and complete confidentiality, integrity, and availability impact.
Mitigation Recommendations
A fix is available in vm2 version 3.11.4. Users should upgrade to version 3.11.4 or later to remediate this vulnerability. No other mitigations are indicated by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-05-18T19:50:18.696Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a2c1a23e617e2d8347eb1d6
Added to database: 6/12/2026, 2:39:31 PM
Last enriched: 6/12/2026, 2:55:43 PM
Last updated: 6/13/2026, 4:57:21 AM
Views: 11
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