CVE-2026-92953

Critical

Description

vm2 versions from 3.11.0 before 3.11.8 fail to protect host TypedArray and ArrayBuffer prototypes from sandbox mutation. Attackers can use prototype-walking primitives to reach and modify host Uint8Array.prototype, %TypedArray%.prototype, and ArrayBuffer.prototype, causing host-created typed arrays to observe attacker-controlled properties after VM.run() returns.

SeverityCritical

CVSS10.0

Exploit probability—

ProductVm2

PublishedSep 17, 2026

First seenSep 17, 2026

Weakness typeCWE-913CWE-913

How to fix

Update

vm23.11.8 or later

Vendor advisories

github.com/patriksimek/vm2/security/advisories/GHSA-3vgf-8m4q-q4qr

Affected products

Product	Affected versions	Fixed in
vm2npm	3.11.0 ≤ v < 3.11.8	3.11.8

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