Vulnerability Report

CVE-2026-47131

RCE

Title: vm2 sandbox escape via Buffer and TypeError constructor

RCE

Proof Of Concept

No public PoC currently indexed for CVE-2026-47131.

CWE Category CWE-913

Published Date Jun 12, 2026

Modified Date Jun 13, 2026

Exploit Status Not Found

Score 10.0 CVSS v3.1

Exploit Probability (EPSS)

0.40%

Vulnerability Summary

CVE-2026-47131: vm2 is an open source vm/sandbox for Node.js. Prior to version 3.11.4, by combining Buffer.call.call({}.__lookupGetter__, Buffer, "__proto__"), Buffer.call.call({}.__lookupSetter__, Buffer, "__proto__"), and Node.js's ERR_INVALID_ARG_TYPE Error, the host's TypeError constructor can be obtained, which allows the escape from the sandbox. This allows attackers to run arbitrary code. This issue has been patched in version 3.11.4.

Impacted Vendors

Analysis in Progress...

Reference Links

https://github.com/patriksimek/vm2/commit/27c525f4615e2b983f122e2bed327d810126f5c8 https://github.com/patriksimek/vm2/releases/tag/v3.11.4 https://github.com/patriksimek/vm2/security/advisories/GHSA-v6mx-mf47-r5wg

CVSS v3.1

Source Entity [email protected]

Severity CRITICAL

10.0

Attack Vector

NETWORK

Complexity

LOW

Privileges

N/A

Interaction

NONE

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

CHANGED

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

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2026-47131 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

June 13, 2026 MODIFIED

Vulnerability data updated via NVD.

June 12, 2026 MODIFIED

Vulnerability data updated via NVD.

June 12, 2026 MODIFIED

Vulnerability data updated via NVD.

Attack Vector Matrix

Access Vector NETWORK

Complexity LOW

Privileges N/A

Interaction NONE

CVSS Vector String


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

Affected Stack

No specific products linked.