The vulnerability of the LegacyResolver.customResolve() function in the lib/resolver-compat.js file, a part of the NodeVM library, within the vm2 package manager of NPM, allows a malicious actor to execute arbitrary code.

The vulnerability of the LegacyResolver.customResolve function in the lib/resolver-compat.js file of the NodeVM library’s vm2 module is related to authentication process vulnerabilities. Exploiting this vulnerability could allow an attacker to execute arbitrary code...

CVE-2026-100721 vm2 before 3.12.2 Authorization Bypass via Custom Resolver

vm2 before 3.12.2 contains an authorization bypass in the NodeVM external-module resolver. When an embedder configures require.external with a custom resolver and context: 'host', LegacyResolver.customResolve in lib/resolver-compat.js records the resolved module directory in this.externals as new...

PT-2026-99448

Name of the Vulnerable Software and Affected Versions vm2 versions prior to 3.12.2 Description An authorization bypass exists in the NodeVM external-module resolver. When an embedder configures require.external with a custom resolver and context: 'host', the LegacyResolver.customResolve function ...