CVE-2026-92933

vm2 (a Node.js sandbox for untrusted code) in versions ≤ 3.11.7 leaks host-process information to sandboxed code. The root cause is that NodeVM exposes the host util module as an unfiltered shallow copy via defaultBuiltinLoaderUtil, and the deprecated sys builtin (an alias of util) through the ge...

CVE-2026-92933 vm2 before 3.11.8 Information Disclosure via util.getCallSites

vm2 is a sandbox for running untrusted Node.js code. In versions = 22.9 this hands sandboxed code util.getCallSites, a programmatic stack-introspection API that returns the host process's full call stack, including absolute file paths, function names, and line numbers for vm2 bridge internals and...

CVE-2026-92933 vm2 before 3.11.8 Information Disclosure via util.getCallSites

vm2 is a sandbox for running untrusted Node.js code. In versions = 22.9 this hands sandboxed code util.getCallSites, a programmatic stack-introspection API that returns the host process's full call stack, including absolute file paths, function names, and line numbers for vm2 bridge internals and...

CVE-2026-92955: Improper Control of Dynamically-Managed Code Resources

vm2 before 3.11.8 contains a sandbox escape vulnerability in NodeVM that allows attackers to access the host proto getter/setter through console.stdout and console.stderr. Attackers can overwrite EventEmitter.prototype.emit and trigger process events to execute code with process context, bypassin...

CVE-2026-92940: Exposure of Resource to Wrong Sphere

vm2 versions 3.11.3 through 3.11.6 expose the host process's real https.globalAgent to sandboxed code when a NodeVM is explicitly configured to allow require'https'. The builtin loader wraps host modules in a read-only proxy, but method calls such as Agent.prototype.on are forwarded to the...

CVE-2026-92957: Improper Privilege Management

vm2 through 3.11.6 does not normalize node:-prefixed builtin specifiers when evaluating user-supplied negative deny entries in a NodeVM wildcard require policy. Although NodeVM strips the node: prefix during require resolution, negative wildcard entries are matched by exact string comparison...

CVE-2026-92945: Improper Limitation of a Pathname to a Restricted Directory

vm2 before 3.11.7 contains a module allowlist bypass vulnerability in isPathAllowedForModule that uses raw string prefix matching instead of boundary-anchored comparison. Attackers can reach non-allowlisted packages sharing a prefix with allowlisted modules by performing relative requires from...

CVE-2026-92961: Allocation of Resources Without Limits or Throttling

vm2 before 3.11.6 fails to enforce bufferAllocLimit on ArrayBuffer, SharedArrayBuffer, and TypedArray constructors, allowing attackers to allocate arbitrary host memory. Attackers can bypass the buffer allocation cap by using these V8 intrinsics to exhaust host process memory and trigger...

CVE-2026-92933: Exposure of Sensitive Information to an Unauthorized Actor

vm2 is a sandbox for running untrusted Node.js code. In versions = 22.9 this hands sandboxed code util.getCallSites, a programmatic stack-introspection API that returns the host process's full call stack, including absolute file paths, function names, and line numbers for vm2 bridge internals and...

CVE-2026-92954: Uncaught Exception

vm2 is a sandbox library for running untrusted JavaScript in Node.js. In versions = 3.10.0 and = 3.11.7, Promises returned from the host realm into the sandbox are not marked as handled at the bridge boundary; only Promises created inside the sandbox are wrapped with a rejection-swallowing handle...

CVE-2026-92962: Protection Mechanism Failure

vm2 is a sandbox for running untrusted JavaScript. In vm2 versions up to and including 3.11.3, the defaultSandboxPrepareStackTrace function in lib/setup-sandbox.js builds its output array using prototype-walking index assignment lineslines.length = value rather than a prototype-bypassing...

CVE-2026-92947: Exposure of Sensitive Information to an Unauthorized Actor

vm2 before 3.11.7 exposes Node's shared Buffer pool to sandboxed code, allowing disclosure of host memory used by Buffer.from, Buffer.concat, and related allocations. Sandboxed code can read and write to host-realm buffers by acquiring ArrayBuffers from small allocations, leading to sensitive dat...

CVE-2026-92946: Improper Control of Dynamically-Managed Code Resources

vm2 before 3.11.7 contains a remote code execution vulnerability when require.external is enabled without an explicit require.root that excludes nodemodules. Sandboxed code can require vm2's own package, instantiate an unrestricted NodeVM instance, and execute arbitrary host OS commands via...

CVE-2026-92951: Use of Incorrectly-Resolved Name or Reference

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 allowliste...

CVE-2026-92959: Protection Mechanism Failure

vm2 before 3.11.8 does not fully enforce the allowAsync: false option in VM and NodeVM. While localPromise.prototype.then is replaced with a handler that throws 'Async not available', the sandbox's Promise static methods Promise.resolve, Promise.all, Promise.race, Promise.any, and...

CVE-2026-92944: Protection Mechanism Failure

vm2 versions 3.10.2 through 3.11.6 contain a sandbox escape vulnerability on Node.js 26 where Promise.prototype.finally bypasses vm2's wrapper protections due to a stale PromiseThenLookupChain protector in V8 14.6. Attackers can exploit this by creating an async function that returns a Promise wi...

CVE-2026-92939: Process Control

vm2 3.11.3 through 3.11.6 exposes the host Node.js crypto module to a NodeVM sandbox when the crypto builtin is allowed. The module is presented via a recursive read-only proxy, but its callable exports still execute with host-process authority. Sandboxed JavaScript can therefore call...

CVE-2026-92937: Improper Control of Generation of Code

vm2 3.11.6 is vulnerable to a sandbox escape leading to remote code execution in the host Node.js process. The fix for GHSA-m283-3h24-438v is incomplete: the bridge gate at lib/bridge.js:1624 identity-checks only the direct call target when deciding whether to rebuild/sanitise a rejected host...

CVE-2026-92938: Protection Mechanism Failure

vm2 versions 3.11.3 through 3.11.6 expose Node.js's host node:sqlite module to code running in NodeVM when that builtin is permitted, either explicitly or through builtin: ''. The module is wrapped with vm.readonly, which prevents property assignment but leaves host-authority callables reachable;...

CVE-2026-92936: Generation of Error Message Containing Sensitive Information

vm2 versions 3.11.0 through 3.11.6 leak absolute host filesystem paths to sandboxed code through error stack formatting. Attacker-supplied code can force the host-realm source transformer to throw a SyntaxError for example by calling eval with malformed source and then read the error's .stack...