CVE-2026-26956: VM2 Project VM2

Critical severity, CVSS 9.8. EPSS: 0.9% chance of exploitation in the next 30 days.

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.

Affected products

• VM2 Project VM2: before 3.10.5 (fixed in 3.10.5)

Published 2026-05-04. Last modified 2026-07-15.