---
id: CVE-2026-92951
title: >-
  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
summary: >-
  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 re…
severity: critical
cvss: 9.9
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H'
cwe:
  - CWE-706
vendor: patriksimek
product: vm2
affected:
  - vm2 < 3.11.7
published: '2026-09-17'
updated: '2026-09-17'
sourceUpdated: '2026-09-17T20:18:59.610'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-92951'
references:
  - url: 'https://github.com/patriksimek/vm2/security/advisories/GHSA-c48m-32m9-vx93'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/vm2-before-3.11.7-module-allowlist-bypass-via-custom-resolver
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-17T18:57:28.158352Z'
ingestedAt: '2026-09-17T14:19:30.988Z'
epss: 0.00369
epssPercentile: 0.30699
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.