Critical severity · published Jan 26, 2026
CVE-2026-22709
vm2 has a Sandbox Escape
10.0
CVSS
1.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)1.3% · higher than 70% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
VM
vm2 · patriksimek
< 3.10.2 · source: vendor, NVD
Affected product
VM
vm2
patriksimek
More from vm2
10.0
CVE-2026-93606
vm2 before 3.12.1 Sandbox Escape via Promise Symbol.species
10.0
CVE-2026-93605
vm2 NodeVM before 3.12.1 Remote Code Execution via child_process
10.0
CVE-2026-93603
vm2 before 3.12.1 Sandbox Escape RCE via Non-Strict Host Function
10.0
CVE-2026-92960
vm2 before 3.11.6 Process-wide State Exposure via os and dns
10.0
CVE-2026-92956
vm2 3.10.1 through 3.11.6 Sandbox Escape via WebAssembly.compileStreaming