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CVE-2026-92956— vm2 3.10.1 through 3.11.6 Sandbox Escape via WebAssembly.compileStreaming

Quick assessment

Affected
patriksimek vm2
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

VM2 版本 3.10.1 至 3.11.6 存在一个沙箱逃逸漏洞，该漏洞可在 Node.js 26 环境下，从默认的 沙箱中触发。 和 可以生成属于宿主域（host-realm）的 Promise，该 Promise 会以宿主域错误对象的形式被拒绝。通过利用 控制 ，沙箱代码能够接收到这个原始的宿主域错误对象；随后，从该错误对象的构造器出发，可以遍历到宿主域的 构造器，并最终恢复出真正的宿主 对象。这使得沙箱代码获得了宿主 Node.js 的能力（例如访问 等宿主模块），且这一切都发生在运行沙箱的进程上下文中。此

CVSS 10.0 · Critical
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I. Basic Information for CVE-2026-92956

Vulnerability Information
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Vulnerability Title
vm2 3.10.1 through 3.11.6 Sandbox Escape via WebAssembly.compileStreaming
Source: CVE Program / CVE List V5
Vulnerability Description
vm2 versions 3.10.1 through 3.11.6 contain a sandbox escape reachable from a default `new VM()` sandbox when running on Node.js 26. WebAssembly.compileStreaming and WebAssembly.instantiateStreaming can produce a raw host-realm Promise that rejects with a host-realm error object; by controlling Symbol.species via Promise.prototype.finally, sandbox code receives that raw host error, walks from the host error constructor to the host Function constructor, and recovers the real host `process` object, gaining host Node.js capabilities (e.g. access to host modules such as fs) in the context of the process running the sandbox. No NodeVM, require permission, host object injection, or otherwise unsafe configuration is required. This is a bypass of the fix for GHSA-6j2x-vhqr-qr7q, which removed the JSPI entry points WebAssembly.promising and WebAssembly.Suspending. The issue is fixed in 3.11.7.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
保护机制失效
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
patriksimek vm2 3.10.1 ~ 3.11.7 -

II. Public POCs for CVE-2026-92956

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III. Intelligence Information for CVE-2026-92956

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Vendor Advisories for CVE-2026-92956 (2)

Same Patch Batch · patriksimek · 2026-09-17 · 30 CVEs total

CVE-2026-92947 10.0 CRITICAL vm2 before 3.11.7 Memory Disclosure via Buffer Pool
CVE-2026-92941 10.0 CRITICAL vm2 3.11.3 before 3.11.7 TLS Trust Store Manipulation
CVE-2026-92960 10.0 CRITICAL vm2 before 3.11.6 Process-wide State Exposure via os and dns
CVE-2026-92940 10.0 CRITICAL vm2 3.11.3 through 3.11.6 HTTPS Credential Exposure via globalAgent
CVE-2026-92937 10.0 CRITICAL vm2 3.11.6 Remote Code Execution via Promise call/apply
CVE-2026-92946 10.0 CRITICAL vm2 before 3.11.7 Remote Code Execution via require.external
CVE-2026-92953 10.0 CRITICAL vm2 3.11.0 through 3.11.7 Prototype Pollution via TypedArray
CVE-2026-92955 10.0 CRITICAL vm2 before 3.11.8 Sandbox Escape via NodeVM
CVE-2026-92957 9.9 CRITICAL vm2 before 3.11.7 Authentication Bypass via node: Prefix
CVE-2026-92948 9.9 CRITICAL vm2 3.9.6 through 3.11.5 Sandbox Escape via node:test
CVE-2026-92939 9.9 CRITICAL vm2 3.11.3 through 3.11.6 Native Code Execution via crypto.setEngine
CVE-2026-92938 9.9 CRITICAL vm2 3.11.3 through 3.11.6 Remote Code Execution via node:sqlite
CVE-2026-92951 9.9 CRITICAL vm2 before 3.11.7 Module Allowlist Bypass via Custom Resolver
CVE-2026-92944 9.8 CRITICAL vm2 3.10.2 through 3.11.6 Sandbox Escape via Promise Protector
CVE-2026-92935 9.0 CRITICAL vm2 NodeVM Remote Code Execution via Array-Shaped Require
CVE-2026-92934 9.0 CRITICAL vm2 before 3.11.8 Sandbox Escape RCE via AggregateError
CVE-2026-92954 8.6 HIGH vm2 3.10.0 through 3.11.5 Denial of Service via Host Promise
CVE-2026-92950 8.6 HIGH vm2 before 3.11.7 Sandbox Escape via CLI require
CVE-2026-92958 8.5 HIGH vm2 before 3.11.7 Denylist Bypass via fs/promises
CVE-2026-92942 7.5 HIGH vm2 before 3.11.7 Timeout Bypass via FinalizationRegistry

Showing top 20 of 30 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: vm2
Same vendor: patriksimek
Same weakness: CWE-693

V. Comments for CVE-2026-92956

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