Information Exposure

Overview vm2 is a sandbox that can run untrusted code with whitelisted Node's built-in modules. Affected versions of this package are vulnerable to Information Exposure in the util.getCallSites function. An attacker can access sensitive information from the host environment, such as absolute file...

CVE-2026-92933

A flaw was found in vm2. The NodeVM component exposes the host util module, including the util.getCallSites function, to the sandbox as an unfiltered copy. On Node.js versions 22.9 and later, this allows sandboxed code to access util.getCallSites, which can return the host process's full call...

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...