CVE-2026-44007
Critical
Description
vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.1, when a NodeVM is created with nesting: true, sandbox code can unconditionally require('vm2') regardless of the outer VM's require configuration — including require: false. With access to vm2, the sandbox constructs a new inner NodeVM with its own unrestricted require settings and executes arbitrary OS commands on the host. Any application that runs untrusted code inside a NodeVM with nesting: true is fully compromised. This vulnerability is fixed in 3.11.1.
SeverityCritical
CVSS9.1
Exploit probability—
ProductVm2
PublishedMay 13, 2026
First seenMay 13, 2026
Weakness typeCWE-284Improper access control
How to fix
Update
- vm2_project vm23.11.1 or later
- vm23.11.1 or later
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| vm2_project vm2 | v < 3.11.1 | 3.11.1 |
| vm2npm | v < 3.11.1, v ≤ 3.11.0 | 3.11.1 |
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