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CVE-2026-43997— vm2: Sandbox Escape

CVSS 10.0 · Critical EPSS 0.05% · P15

Possible ATT&CK Techniques 1AI

T1610 · Deploy Container

Affected Version Matrix 1

VendorProductVersion RangeStatus
patriksimekvm2< 3.11.0affected
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I. Basic Information for CVE-2026-43997

Vulnerability Information
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Vulnerability Title
vm2: Sandbox Escape
Source: NVD (National Vulnerability Database)
Vulnerability Description
vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.0, it is possible to obtain the host Object. There are various ways to use the host Object, to escape the sandbox, one example would be using HostObject.getOwnPropertySymbols to obtain Symbol(nodejs.util.inspect.custom). This vulnerability is fixed in 3.11.0.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
对生成代码的控制不恰当(代码注入)
Source: NVD (National Vulnerability Database)
Vulnerability Title
vm2 代码注入漏洞
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 3.11.0之前版本存在代码注入漏洞，该漏洞源于可能获取宿主Object对象，允许通过多种方式利用宿主Object逃逸沙箱。
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 < 3.11.0 -

II. Public POCs for CVE-2026-43997

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III. Intelligence Information for CVE-2026-43997

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

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-2026-440079.1 CRITICALvm2: nesting: true bypasses require: false, allowing sandbox escape to arbitrary OS comman
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-94

V. Comments for CVE-2026-43997

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