CVE-2026-47137: vm2 is an open source vm/sandbox for Node.js. Prior to version 3.11.4, the fix for GHSA-8hg8-63c5-gwmx (CVE-2023-37903) …
vm2 is an open source vm/sandbox for Node.js. Prior to version 3.11.4, the fix for GHSA-8hg8-63c5-gwmx (CVE-2023-37903) introduced a check in nodevm.js line 263 that blocks the combination nesting: true + require: false. However, the check uses strict equality (options.require === false), which is trivially bypassed by omitting the require option entirely. When require is not specified, options.require is undefined, not false. The strict equality check fails, so the security guard is skipped. Immediately after (line 280), the destructuring default require: requireOpts = false assigns requireOpts = false, producing the exact configuration the patch was designed to prevent. This issue has been patched in version 3.11.4.
- Published by source
- 2026-06-12
- First seen by Reality Radar
- 2026-10-26
- Last verified
- 2026-10-26
What the official notice says
Risk: critical severity (CVSS 10)
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Sources
- NIST National Vulnerability Database Tier A · official published 2026-06-12
Evidence ledger
Every piece of evidence we store is appended to a public hash chain, so later edits are detectable. Anyone can re-verify it.
| Entry | Kind | Observed | Evidence hash | Entry hash |
|---|---|---|---|---|
| #1858 | new | 2026-10-26 | f94812b7da28…9263a4 | 6fdcc2ff80ce…247e35 |
Chain head: #1913 68d492d71c09…880c23