Critical severity · published Sep 17, 2026
CVE-2026-92937
vm2 3.11.6 Remote Code Execution via Promise call/apply
10.0
CVSS
1%
EPSS
No
On KEV
Description
vm2 3.11.6 is vulnerable to a sandbox escape leading to remote code execution in the host Node.js process. The fix for GHSA-m283-3h24-438v is incomplete: the bridge gate at lib/bridge.js:1624 identity-checks only the direct call target when deciding whether to rebuild/sanitise a rejected host Promise value. Registering the rejection handler through Function.prototype.call or .apply indirection (e.g., p.then.call(p, undefined, cb)) makes the intercepted target host Function.prototype.call, so the sanitiser never runs and the raw host error reaches sandbox code with its own properties intact. If an embedder exposes a host-realm Promise to the sandbox (an async host function bridged via the sandbox option, or a NodeVM external module's async method) and that Promise rejects with an Error carrying a non-primitive own property referencing a host object (for example err.detail = process), untrusted code in the sandbox obtains a fully functional proxy to that host object and can execute arbitrary commands with the privileges of the host process (e.g., e.detail.mainModule.require('child_process').execSync(...)). The direct p.then(undefined, cb), bind, and Reflect.apply forms are correctly sanitised. Fixed in vm2 3.11.7.
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)1.0% · higher than 64% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
VM
vm2 · patriksimek
3.11.6 before 3.11.7 · source: vendor
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