CVE-2026-92955 vm2 before 3.11.8 Sandbox Escape via NodeVM
Attackers can escape the vm2 sandbox to execute arbitrary code on the host system by manipulating internal Node.js objects.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-92955?
CVE-2026-92955 is a critical code injection vulnerability in patriksimek vm2, published on 17 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
vm2 before 3.11.8 contains a sandbox escape vulnerability in NodeVM that allows attackers to access the host __proto__ getter/setter through console._stdout and console._stderr. Attackers can overwrite EventEmitter.prototype.emit and trigger process events to execute code with process context, bypassing code generation restrictions.
Weakness: CWE-913
Which versions are affected by CVE-2026-92955?
2 open source packages ship an affected version, including vm2.
| Package | Affected | Fixed in |
|---|---|---|
vm2 npm | All versions | 3.11.8 |
vm2 npm | All versions | 3.11.8 |
How do I fix CVE-2026-92955?
Upgrade vm2 to 3.11.8 or later.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2026-92955 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-92955 exists.
Sources
Also known as CLEANSTART-2026-HO68117, CLSA-2026-1791455219, ECHO-ef0e-9d96-89f2, GHSA-88hf-g992-jg85, MINI-crf7-rc8h-vp8r, ROOT-APP-NPM-CVE-2026-92955.