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CVE-2026-44007— vm2: nesting: true bypasses require: false, allowing sandbox escape to arbitrary OS command execution

CVSS 9.1 · Critical EPSS 0.04% · P11

Affected Version Matrix 1

VendorProductVersion RangeStatus
patriksimekvm2< 3.11.1affected
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I. Basic Information for CVE-2026-44007

Vulnerability Information
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Vulnerability Title
vm2: nesting: true bypasses require: false, allowing sandbox escape to arbitrary OS command execution
Source: NVD (National Vulnerability Database)
Vulnerability Description
vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.1, when a NodeVM is created with nesting: true, sandbox code can unconditionally require('vm2') regardless of the outer VM's require configuration — including require: false. With access to vm2, the sandbox constructs a new inner NodeVM with its own unrestricted require settings and executes arbitrary OS commands on the host. Any application that runs untrusted code inside a NodeVM with nesting: true is fully compromised. This vulnerability is fixed in 3.11.1.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
访问控制不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
vm2 访问控制错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
vm2是捷克Patrik Simek个人开发者的一个 Node.js 的高级虚拟机/沙盒。以使用列入白名单的 Node 内置模块运行不受信任的代码。 vm2 3.11.1之前版本存在访问控制错误漏洞，该漏洞源于当NodeVM创建时设置nesting: true，沙箱代码可无条件require( vm2 )，并构造新的内部NodeVM执行任意OS命令。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
patriksimekvm2 < 3.11.1 -

II. Public POCs for CVE-2026-44007

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III. Intelligence Information for CVE-2026-44007

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Same Patch Batch · patriksimek · 2026-05-13 · 14 CVEs total

CVE-2026-4399710.0 CRITICALvm2: Sandbox Escape
CVE-2026-4400510.0 CRITICALvm2: Sandbox escape
CVE-2026-4400610.0 CRITICALvm2: Sandbox Escape
CVE-2026-439999.9 CRITICALvm2: NodeVM builtin allowlist bypass via `module` builtin's `Module._load` allows sandbox
CVE-2026-454119.8 CRITICALvm2: Sandbox Breakout Using Async Generator
CVE-2026-440099.8 CRITICALvm2: Sandbox Breakout Through Null Proto Exception
CVE-2026-440089.8 CRITICALvm2: Snabox breakout via `neutralizeArraySpeciesBatch`
CVE-2026-440018.6 HIGHvm2: Sandbox Escape via Promise Constructor Unhandled Rejection (Process Crash DoS)
CVE-2026-439988.5 HIGHvm2: NodeVM require.root bypass via symlink traversal allows sandbox escape
CVE-2026-440047.5 HIGHvm2: Host Process OOM DoS via Buffer.alloc (Timeout Bypass)
CVE-2026-440006.5 MEDIUMvm2: sandbox boundary bypass via host Promise resolution preserving host object identity
CVE-2026-440025.8 MEDIUMvm2: Host File Path Disclosure via Stack Trace Information Leak
CVE-2026-440035.3 MEDIUMvm2: Transformer Fast-Path Bypass Exposes Internal State Variable

IV. Related Vulnerabilities

Same product: vm2
Same vendor: patriksimek
Same weakness: CWE-284

V. Comments for CVE-2026-44007

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