GHSA-hc6q-4vvg-jf79: Duplicate Advisory Vm2 CLI Provides No Sandbox Vulnerability

CRITICAL
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CVSS 8.6
CWE-453
Published
Advisory Summary

GHSA-hc6q-4vvg-jf79 is a CRITICAL (CVSS 8.6) vm2 cli provides no sandbox vulnerability (CWE-453: Insecure Default Variable Initialization) affecting Duplicate Advisory libraries in the npm ecosystem. The issue involves vm2 cli provides no sandbox isolation - host-realm require() is reachable from sandboxed scripts. Remediation is available in the latest vendor maintenance releases.

GHSA-hc6q-4vvg-jf79 at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-hc6q-4vvg-jf79
Severity CRITICAL
CVSS v3.1 Base Score 8.6
CWE Classification CWE-453: Insecure Default Variable Initialization
Affected Product Duplicate Advisory
Package Ecosystem npm
Published Date
Last Updated

Security Impact

CVSS: 8.6

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H).

Attack Vector Local (AV:L)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction Required (UI:R)
Scope Changed (S:C)
Confidentiality High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix GHSA-hc6q-4vvg-jf79

To remediate this vulnerability, upgrade all affected Duplicate Advisory dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

vm2 fixed: Latest secure release 
npm install vm2@Latest secure release
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

npm ls vm2

How to Check if You Are Affected

To determine whether your Node.js application is affected by GHSA-hc6q-4vvg-jf79, inspect your project dependencies using npm:

npm ls vm2

Analyze the terminal output to locate any version of Duplicate Advisory in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: The npm ls vm2 command inspects dependencies declared in your package.json and lockfile; it does not perform automated runtime dynamic scanning.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-453: Insecure Default Variable Initialization, where the product, by default, initializes an internal variable with an insecure or less secure value than is possible. In Duplicate Advisory, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

## Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-jxxv-8r27-vm4p. This link is maintained to preserve external references. ## Original Description vm2 before 3.11.7 contains a sandbox escape vulnerability in the CLI tool that allows attackers to execute arbitrary code in the host Node.js process. Attackers can supply a malicious script file to the vm2 CLI that uses require(__filename) to re-execute itself in the host realm, bypassing sandbox isolation and accessing host modules like fs and child_process.

GHSA-hc6q-4vvg-jf79 Affected Duplicate Advisory Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
vm2
npm/vm2
npm
≤ 3.11.6

References

GitHub Advisory / Wiki ADVISORY
https://github.com/patriksimek/vm2/security/advisories/GHSA-jxxv-8r27-vm4p
NVD — GHSA-hc6q-4vvg-jf79 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-92950
www.vulncheck.com/advisories/vm2-befo... WEB
https://www.vulncheck.com/advisories/vm2-before-3.11.7-sandbox-escape-via-cli-require

Frequently Asked Questions

What is GHSA-hc6q-4vvg-jf79?
GHSA-hc6q-4vvg-jf79 is a security vulnerability in Duplicate Advisory involving vm2 CLI provides no sandbox isolation - host-realm require() is reachable from sandboxed scripts under CWE-453: Insecure Default Variable Initialization.
Which Duplicate Advisory versions are affected?
Affected versions include releases prior to current release patches across affected packages: vm2.
What version fixes GHSA-hc6q-4vvg-jf79?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is vm2 affected?
Yes, vm2 is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of GHSA-hc6q-4vvg-jf79?
GHSA-hc6q-4vvg-jf79 has a CVSS v3.1 base score of 8.6 (CRITICAL) with vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H.
What CWE is associated with GHSA-hc6q-4vvg-jf79?
GHSA-hc6q-4vvg-jf79 is classified under CWE-453: Insecure Default Variable Initialization (The product, by default, initializes an internal variable with an insecure or less secure value than is possible.).
How can I check npm dependencies for GHSA-hc6q-4vvg-jf79?
Run the dependency tree command: 'npm ls vm2'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-hc6q-4vvg-jf79",
  "modified" : "2026-10-01T15:38:40Z",
  "published" : "2026-09-17T15:32:16Z",
  "withdrawn" : "2026-10-01T15:38:40Z",
  "aliases" : [ ],
  "summary" : "Duplicate Advisory: vm2 CLI provides no sandbox isolation - host-realm require() is reachable from sandboxed scripts",
  "details" : "## Duplicate Advisory\n\nThis advisory has been withdrawn because it is a duplicate of GHSA-jxxv-8r27-vm4p. This link is maintained to preserve external references.\n\n## Original Description\nvm2 before 3.11.7 contains a sandbox escape vulnerability in the CLI tool that allows attackers to execute arbitrary code in the host Node.js process. Attackers can supply a malicious script file to the vm2 CLI that uses require(__filename) to re-execute itself in the host realm, bypassing sandbox isolation and accessing host modules like fs and child_process.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "vm2"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "3.11.6"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/patriksimek/vm2/security/advisories/GHSA-jxxv-8r27-vm4p"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-92950"
  }, {
    "type" : "WEB",
    "url" : "https://www.vulncheck.com/advisories/vm2-before-3.11.7-sandbox-escape-via-cli-require"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-453" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-10-01T15:38:40Z",
    "nvd_published_at" : "2026-09-17T14:18:00Z"
  }
}