Description
vm2 is an open source vm/sandbox for Node.js. In vm2 prior to version 3.10.2, `Promise.prototype.then` `Promise.prototype.catch` callback sanitization can be bypassed. This allows attackers to escape the sandbox and run arbitrary code. In lib/setup-sandbox.js, the callback function of `localPromise.prototype.then` is sanitized, but `globalPromise.prototype.then` is not sanitized. The return value of async functions is `globalPromise` object. Version 3.10.2 fixes the issue.
References (3)
Scores
CVSS v3
9.8
EPSS
0.0005
EPSS Percentile
14.0%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
total
Details
CWE
CWE-94
CWE-693
CWE-913
Status
published
Products (2)
npm/vm2
0 - 3.10.2npm
vm2_project/vm2
< 3.10.2
Published
Jan 26, 2026
Tracked Since
Feb 18, 2026