CVE-2026-92947

Critical

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.

SeverityCritical

CVSS10.0

Exploit probability—

ProductVm2

PublishedSep 17, 2026

First seenSep 17, 2026

Weakness typeCWE-200Sensitive information exposure

How to fix

Update

vm23.11.7 or later

Vendor advisories

github.com/patriksimek/vm2/security/advisories/GHSA-fcqc-726x-5wfc

Affected products

Product	Affected versions	Fixed in
vm2npm	v < 3.11.7	3.11.7

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