CVE-2026-47141
Medium
Description
vm2 is an open source vm/sandbox for Node.js. Prior to version 3.11.4, NodeVM exposes some process-wide observability builtins when they are allowed through require.builtin. The diagnostics_channel, async_hooks, and perf_hooks builtins are not blocked by the dangerous builtin denylist. These modules are process-wide, not sandbox-local. Sandboxed code can use them to observe host application data across the vm2 boundary. This issue has been patched in version 3.11.4.
SeverityMedium
CVSS6.9
Exploit probability—
ProductVm2
PublishedJun 12, 2026
First seenJun 12, 2026
Weakness typeCWE-668CWE-668
How to fix
Update
- vm23.11.4 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| vm2npm | v < 3.11.4 | 3.11.4 |
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