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CVE-2026-22686— Sandbox Escape via Host Error Prototype Chain in enclave-vm

Quick assessment

Affected
agentfront enclave
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.

Enclave是AgentFront开源的一个沙箱软件。 Enclave 2.7.0之前版本存在安全漏洞，该漏洞源于沙盒逃逸，可能导致在主机Node.js运行时中执行任意代码。

CVSS 10.0 · Critical EPSS 0.76% · P54

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter
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I. Basic Information for CVE-2026-22686

Vulnerability Information
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Vulnerability Title
Sandbox Escape via Host Error Prototype Chain in enclave-vm
Source: CVE Program / CVE List V5
Vulnerability Description
Enclave is a secure JavaScript sandbox designed for safe AI agent code execution. Prior to 2.7.0, there is a critical sandbox escape vulnerability in enclave-vm that allows untrusted, sandboxed JavaScript code to execute arbitrary code in the host Node.js runtime. When a tool invocation fails, enclave-vm exposes a host-side Error object to sandboxed code. This Error object retains its host realm prototype chain, which can be traversed to reach the host Function constructor. An attacker can intentionally trigger a host error, then climb the prototype chain. Using the host Function constructor, arbitrary JavaScript can be compiled and executed in the host context, fully bypassing the sandbox and granting access to sensitive resources such as process.env, filesystem, and network. This breaks enclave-vm’s core security guarantee of isolating untrusted code. This vulnerability is fixed in 2.7.0.
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
Vulnerability Title
Enclave 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Enclave是AgentFront开源的一个沙箱软件。 Enclave 2.7.0之前版本存在安全漏洞，该漏洞源于沙盒逃逸，可能导致在主机Node.js运行时中执行任意代码。
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)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
agentfront enclave < 2.7.0 -

II. Public POCs for CVE-2026-22686

# POC Description Source Link Shenlong Link
1 None https://github.com/amusedx/CVE-2026-22686 POC Details
AI-Generated POC Premium
Qwen3.6-35B-A3B · 8077 chars
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
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III. Intelligence Information for CVE-2026-22686

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Patches & Fixes for CVE-2026-22686 (1)

Vendor Advisories for CVE-2026-22686 (1)

IV. Related Vulnerabilities

Same product: enclave
Same vendor: agentfront
Same weakness: CWE-693

V. Comments for CVE-2026-22686

Anonymous User
2026-01-15 06:08:42

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