CVE-2026-92933 Details
Description
vm2 is a sandbox for running untrusted Node.js code. In versions <= 3.11.7, NodeVM exposes the host `util` module to the sandbox as an unfiltered shallow copy (`Object.assign({}, util)` in `defaultBuiltinLoaderUtil`), and the deprecated `sys` builtin (an alias of host `util`) is exposed through the generic builtin loader. On Node.js >= 22.9 this hands sandboxed code `util.getCallSites()`, a programmatic stack-introspection API that returns the host process's full call stack, including absolute file paths, function names, and line numbers for vm2 bridge internals and the embedding application's entrypoint. This bypasses the host-frame redaction introduced for GHSA-v27g-jcqj-v8rw, which only applies to the `Error.prepareStackTrace` formatting channel. The issue is fixed in vm2 3.11.8.
A vulnerability in vm2 versions through 3.11.7 allows untrusted Node.js code to access sensitive host information. This occurs because NodeVM exposes the host 'util' module as an unfiltered shallow copy, along with the deprecated 'sys' builtin, which is an alias of 'util'. On Node.js versions 22.9 and above, this exposure includes 'util.getCallSites()', a method that reveals the host process's full call stack, including file paths, function names, and line numbers. This bypasses previous redaction protections, allowing disclosure of internal vm2 and application-specific details. The vulnerability is fixed in vm2 version 3.11.8.
Users can upgrade to vm2 version 3.11.8 to address this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Sep 17, 2026CISA-ADP
Assessed Sep 19, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/patriksimek/vm2/security/advisories/GHSA-r273-hxvj-fxhp | CISA-ADP | AdvisoryTechnical AnalysisVendor |
| https://github.com/patriksimek/vm2/security/advisories/GHSA-r273-hxvj-fxhp | [email protected] | AdvisoryTechnical AnalysisVendor |
| https://www.vulncheck.com/advisories/vm2-before-3.11.8-information-disclosure-via-util-getcallsites | [email protected] | AdvisoryRemedy |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-200 | Exposure of Sensitive Information to an Unauthorized Actor | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| vm2 | <= 3.11.7 (semver) |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 19, 2026 | CVE Modified | CISA-ADP |
| Sep 17, 2026 | New CVE Received | [email protected] |