CVE-2026-92947 Details
Description
vm2 before 3.11.7 exposes Node's shared Buffer pool to sandboxed code, allowing disclosure of host memory used by Buffer.from, Buffer.concat, and related allocations. Sandboxed code can read and write to host-realm buffers by acquiring ArrayBuffers from small allocations, leading to sensitive data exposure and potential denial-of-service.
A memory disclosure vulnerability has been identified in vm2 versions prior to 3.11.7. This issue arises because vm2 exposes Node.js's shared Buffer pool to sandboxed code by default. Sandboxed code can read and write to host-realm buffers through small Buffer allocations, using ArrayBuffers from these allocations. This behavior allows the disclosure of sensitive data processed by certain Buffer methods, such as Buffer.from and Buffer.concat, and could potentially lead to a denial-of-service condition.
Users can upgrade to vm2 version 3.11.7 or later 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 17, 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-fcqc-726x-5wfc | CISA-ADP | AdvisoryExploitRemedyVendor |
| https://github.com/patriksimek/vm2/security/advisories/GHSA-fcqc-726x-5wfc | [email protected] | AdvisoryExploitRemedyVendor |
| https://www.vulncheck.com/advisories/vm2-before-3.11.7-memory-disclosure-via-buffer-pool | [email protected] | Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-200 | Exposure of Sensitive Information to an Unauthorized Actor | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| vm2 | <= 3.11.6 (semver) |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 17, 2026 | CVE Modified | CISA-ADP |
| Sep 17, 2026 | New CVE Received | [email protected] |