GHSA-6fvh-fgmg-3x7v: Duplicate Advisory Vm2 Custom Module Resolver Can Vulnerability

CRITICAL
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CVSS 9.9
CWE-706
Published
Advisory Summary

GHSA-6fvh-fgmg-3x7v is a CRITICAL (CVSS 9.9) vm2 custom module resolver can vulnerability (CWE-706: Use of Incorrectly-Resolved Name or Reference) affecting Duplicate Advisory libraries in the npm ecosystem. The issue involves vm2 custom module resolver can bypass the external package allowlist by loading a colliding host package. Remediation is available in the latest vendor maintenance releases.

GHSA-6fvh-fgmg-3x7v at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-6fvh-fgmg-3x7v
Severity CRITICAL
CVSS v3.1 Base Score 9.9
CWE Classification CWE-706: Use of Incorrectly-Resolved Name or Reference
Affected Product Duplicate Advisory
Package Ecosystem npm
Published Date
Last Updated

Security Impact

CVSS: 9.9

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

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

How to Fix GHSA-6fvh-fgmg-3x7v

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-6fvh-fgmg-3x7v, 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-706: Use of Incorrectly-Resolved Name or Reference, where the product uses a name or reference to access a resource, but the name/reference resolves to a resource that is outside of the intended control sphere. 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-c48m-32m9-vx93. This link is maintained to preserve external references. ## Original Description vm2 before 3.11.7 contains an incorrect authorization vulnerability in the external package allowlist check that uses non-exact substring matching instead of full package-name boundary validation. Attackers can bypass the allowlist by requiring a colliding package name that contains an allowlisted package substring, causing vm2 to load and execute unauthorized host packages in the host context.

GHSA-6fvh-fgmg-3x7v 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-c48m-32m9-vx93
NVD — GHSA-6fvh-fgmg-3x7v NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-92951
www.vulncheck.com/advisories/vm2-befo... WEB
https://www.vulncheck.com/advisories/vm2-before-3.11.7-module-allowlist-bypass-via-custom-resolver

Frequently Asked Questions

What is GHSA-6fvh-fgmg-3x7v?
GHSA-6fvh-fgmg-3x7v is a security vulnerability in Duplicate Advisory involving vm2 Custom Module Resolver Can Bypass the External Package Allowlist by Loading a Colliding Host Package under CWE-706: Use of Incorrectly-Resolved Name or Reference.
Which Duplicate Advisory versions are affected?
Affected versions include releases prior to current release patches across affected packages: vm2.
What version fixes GHSA-6fvh-fgmg-3x7v?
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-6fvh-fgmg-3x7v?
GHSA-6fvh-fgmg-3x7v has a CVSS v3.1 base score of 9.9 (CRITICAL) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.
What CWE is associated with GHSA-6fvh-fgmg-3x7v?
GHSA-6fvh-fgmg-3x7v is classified under CWE-706: Use of Incorrectly-Resolved Name or Reference (The product uses a name or reference to access a resource, but the name/reference resolves to a resource that is outside of the intended control sphere.).
How can I check npm dependencies for GHSA-6fvh-fgmg-3x7v?
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-6fvh-fgmg-3x7v",
  "modified" : "2026-10-01T15:37:00Z",
  "published" : "2026-09-17T15:32:16Z",
  "withdrawn" : "2026-10-01T15:37:00Z",
  "aliases" : [ ],
  "summary" : "Duplicate Advisory: vm2 Custom Module Resolver Can Bypass the External Package Allowlist by Loading a Colliding Host Package",
  "details" : "## Duplicate Advisory\n\nThis advisory has been withdrawn because it is a duplicate of GHSA-c48m-32m9-vx93. This link is maintained to preserve external references.\n\n## Original Description\nvm2 before 3.11.7 contains an incorrect authorization vulnerability in the external package allowlist check that uses non-exact substring matching instead of full package-name boundary validation. Attackers can bypass the allowlist by requiring a colliding package name that contains an allowlisted package substring, causing vm2 to load and execute unauthorized host packages in the host context.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/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-c48m-32m9-vx93"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-92951"
  }, {
    "type" : "WEB",
    "url" : "https://www.vulncheck.com/advisories/vm2-before-3.11.7-module-allowlist-bypass-via-custom-resolver"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-706" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-10-01T15:37:00Z",
    "nvd_published_at" : "2026-09-17T14:18:00Z"
  }
}