CVE-2026-26956
Critical
Description
vm2 is an open source vm/sandbox for Node.js. In version 3.10.4, vm2 is vulnerable to full sandbox escape with arbitrary code execution. Attacker code inside VM.run() obtains host process object and runs host commands with zero host cooperation. This issue has been patched in version 3.10.5.
SeverityCritical
CVSS9.8
Exploit probability—
ProductVm2
PublishedMay 4, 2026
First seenMay 4, 2026
Weakness typeCWE-693CWE-693
How to fix
Update
- vm2_project vm23.10.5 or later
- vm23.10.5 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| vm2_project vm2 | v < 3.10.5 | 3.10.5 |
| vm2npm | v < 3.10.5 | 3.10.5 |
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