CVE-2023-37466

CRITICAL9.8EPSS 4.9%

vm2 Sandbox Escape vulnerability

Published: 7/13/2023Modified: 2/3/2026

Description

In vm2 for versions up to 3.9.19, `Promise` handler sanitization can be bypassed, allowing attackers to escape the sandbox and run arbitrary code. ### Impact Remote Code Execution, assuming the attacker has arbitrary code execution primitive inside the context of vm2 sandbox. ### Patches None. ### Workarounds None. ### References PoC - https://gist.github.com/leesh3288/f693061e6523c97274ad5298eb2c74e9 ### For more information If you have any questions or comments about this advisory: - Open an issue in [VM2](https://github.com/patriksimek/vm2) Thanks to [Xion](https://twitter.com/0x10n) (SeungHyun Lee) of [KAIST Hacking Lab](https://kaist-hacking.github.io/) for disclosing this vulnerability.

Affected packages (1)

CVSS scores

SourceVersionSeverityVector
osvCVSS 3.1CRITICAL9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References (8)