CVE-2026-44006 vm2: Sandbox Escape
Attackers can escape the vm2 sandbox to execute arbitrary code by accessing arbitrary prototypes via BaseHandler.getPrototypeOf.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-44006?
CVE-2026-44006 is a critical code injection vulnerability in patriksimek vm2, published on 13 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.0, It is possible to reach BaseHandler.getPrototypeOf, which can be used to get arbitrary prototypes. This vulnerability is fixed in 3.11.0.
Which versions are affected by CVE-2026-44006?
2 open source packages ship an affected version, including vm2. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
vm2 npm | All versions | 3.11.0 |
vm2 npm | All versions | 3.11.0 |
Products include Vm2 Project Vm2.
How do I fix CVE-2026-44006?
Upgrade vm2 to 3.11.0 or later.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2026-44006 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-44006 exists.
Other vulnerabilities in patriksimek vm2
Sources
Also known as GHSA-qcp4-v2jj-fjx8, ROOT-APP-NPM-CVE-2026-44006.