CVE-2023-29199: VM2 Project VM2

Critical severity, CVSS 10.0. EPSS: 3.9% chance of exploitation in the next 30 days.

There exists a vulnerability in source code transformer (exception sanitization logic) of vm2 for versions up to 3.9.15, allowing attackers to bypass `handleException()` and leak unsanitized host exceptions which can be used to escape the sandbox and run arbitrary code in host context. A threat actor can bypass the sandbox protections to gain remote code execution rights on the host running the sandbox. This vulnerability was patched in the release of version `3.9.16` of `vm2`.

Affected products

• VM2 Project VM2: before 3.9.16 (fixed in 3.9.16)

Published 2023-04-14. Last modified 2026-06-17.