Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2026-47686— vm2: Missing Error.cause Sanitization Enables VM2 Sandbox Escape to RCE

Quick assessment

Affected
patriksimek vm2
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Patrik Simek vm2是Patrik Simek个人开发者的一个运行不受信任代码的沙箱环境。 Patrik Simek vm2 3.11.6之前版本存在处理逻辑错误漏洞，该漏洞源于handleException()未对Error.cause进行清理，可能导致沙箱代码获取强大主机对象并执行任意主机命令。

CVSS 9.9 · Critical EPSS 0.32% · P24

Possible ATT&CK Techniques 1 AI

T1055 · Process Injection

Affected Version Matrix 1

VendorProduct Version RangeStatus
patriksimek vm2 < 3.11.6 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-47686

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
vm2: Missing Error.cause Sanitization Enables VM2 Sandbox Escape to RCE
Source: CVE Program / CVE List V5
Vulnerability Description
vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.6, handleException() in lib/setup-sandbox.js sanitizes SuppressedError.error, SuppressedError.suppressed, and AggregateError.errors but does not sanitize Error.cause, allowing sandbox code to obtain a powerful host object such as process from an embedder-exposed host function that throws an error with that object as its cause and then execute arbitrary host commands. This issue is fixed in version 3.11.6.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/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
Vulnerability Title
Patrik Simek vm2 处理逻辑错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Patrik Simek vm2是Patrik Simek个人开发者的一个运行不受信任代码的沙箱环境。 Patrik Simek vm2 3.11.6之前版本存在处理逻辑错误漏洞，该漏洞源于handleException()未对Error.cause进行清理，可能导致沙箱代码获取强大主机对象并执行任意主机命令。
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

Vendor Product Affected Versions CPE Subscribe
patriksimek vm2 < 3.11.6 -

II. Public POCs for CVE-2026-47686

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 7827 chars
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
100+ AI POC generations per month

III. Intelligence Information for CVE-2026-47686

请登录查看更多情报信息。

Vendor Advisories for CVE-2026-47686 (1)

Vendor Pages for CVE-2026-47686 (1)

Same Patch Batch · patriksimek · 2026-08-17 · 3 CVEs total

CVE-2026-47698 9.8 CRITICAL vm2: Sandbox Breakout Using Dangerous Host Proto Mutators
CVE-2026-47683 8.7 HIGH vm2: bufferAllocLimit cap bypassed by Buffer.concat and Buffer.from arrayLike

IV. Related Vulnerabilities

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

V. Comments for CVE-2026-47686

No comments yet

Leave a comment