GHSA-8HR7-R645-PC6W vm2: NodeVM nesting guard accepts array-shaped require and permits host RCE

Summary The NodeVM constructor computes hasRealRequireConfig using typeof requireOpts === 'object' && requireOpts !== null, so require: bypasses the guard intended to reject nesting without an explicit require configuration. makeResolverFromLegacyOptions then destructures the array to undefined...

EUVD-2026-81585

vm2: NodeVM nesting guard accepts array-shaped require and permits host RCE...

NPM: vm2: NodeVM nesting guard accepts array-shaped require and permits host RCE

NPM: vm2: NodeVM nesting guard accepts array-shaped require and permits host RCE vulnerability discovered by ? in WordPress Npm vm2 versions = 3.11.4, = 3.11.6...

vm2: NodeVM nesting guard accepts array-shaped require and permits host RCE

Summary The NodeVM constructor computes hasRealRequireConfig using typeof requireOpts === 'object' && requireOpts !== null, so require: bypasses the guard intended to reject nesting without an explicit require configuration. makeResolverFromLegacyOptions then destructures the array to undefined...

EUVD-2026-81591

vm2 NodeVM can replace the host process TLS trust store...

vm2 NodeVM can replace the host process TLS trust store

Summary vm2 3.11.6 exposes the host tls module to a NodeVM when that builtin is explicitly allowed. Although the module object is wrapped as read-only, its functions still execute against process-wide host state. On Node.js versions that provide tls.setDefaultCACertificates, sandbox code can...

GHSA-98XX-8MX4-X7CM vm2 NodeVM can replace the host process TLS trust store

Summary vm2 3.11.6 exposes the host tls module to a NodeVM when that builtin is explicitly allowed. Although the module object is wrapped as read-only, its functions still execute against process-wide host state. On Node.js versions that provide tls.setDefaultCACertificates, sandbox code can...

vm2: External module allowlist uses a raw prefix test, so a prefix-sharing sibling package is treated as allowlisted

Summary isPathAllowedForModule decides whether a resolved path belongs to an allowlisted external module using a raw string prefix test. nodemodules/foo2 starts with nodemodules/foo, so a package whose name merely shares a prefix with an allowlisted one is treated as being inside it, and a relati...

GHSA-7Q3F-WX44-378M vm2: External module allowlist uses a raw prefix test, so a prefix-sharing sibling package is treated as allowlisted

Summary isPathAllowedForModule decides whether a resolved path belongs to an allowlisted external module using a raw string prefix test. nodemodules/foo2 starts with nodemodules/foo, so a package whose name merely shares a prefix with an allowlisted one is treated as being inside it, and a relati...

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...

Exploit for CVE-2026-100721

CVE-2026-100721 — vm2 NodeVM external allowlist bypass Python...

Duplicate Advisory: vm2: NodeVM zlib Buffers expose pooled host memory across the VM boundary

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-489w-w794-jq94. This link is maintained to preserve external references. Original Description vm2 before 3.12.2 does not apply its Buffer backing-store ownership invariant byteOffset === 0 and buffer.byteLength...

Duplicate Advisory: vm2: NodeVM custom resolution bypasses external path boundaries

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-5h3f-q97h-ccvc. This link is maintained to preserve external references. Original Description vm2 before 3.12.2 contains an authorization bypass in the NodeVM external-module resolver. When an embedder configure...

GHSA-C9WR-QM7P-P6VC Duplicate Advisory: vm2: NodeVM custom resolution bypasses external path boundaries

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-5h3f-q97h-ccvc. This link is maintained to preserve external references. Original Description vm2 before 3.12.2 contains an authorization bypass in the NodeVM external-module resolver. When an embedder configure...

GHSA-43RV-JRFH-9MRR Duplicate Advisory: vm2: NodeVM zlib Buffers expose pooled host memory across the VM boundary

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-489w-w794-jq94. This link is maintained to preserve external references. Original Description vm2 before 3.12.2 does not apply its Buffer backing-store ownership invariant byteOffset === 0 and buffer.byteLength...

CVE-2026-100723

vm2 before 3.12.2 does not apply its Buffer backing-store ownership invariant byteOffset === 0 and buffer.byteLength === length to Buffers returned from host builtin modules. When an application explicitly exposes Node's zlib module through NodeVM's builtin allowlist require: builtin: 'zlib' ,...

CVE-2026-100721

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...

CVE-2026-100723 vm2 before 3.12.2 Memory Disclosure via zlib Buffer Pool

vm2 before 3.12.2 does not apply its Buffer backing-store ownership invariant byteOffset === 0 and buffer.byteLength === length to Buffers returned from host builtin modules. When an application explicitly exposes Node's zlib module through NodeVM's builtin allowlist require: builtin: 'zlib' ,...

CVE-2026-100723 vm2 before 3.12.2 Memory Disclosure via zlib Buffer Pool

vm2 before 3.12.2 does not apply its Buffer backing-store ownership invariant byteOffset === 0 and buffer.byteLength === length to Buffers returned from host builtin modules. When an application explicitly exposes Node's zlib module through NodeVM's builtin allowlist require: builtin: 'zlib' ,...

CVE-2026-100721

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...