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CVE-2026-46701— Network-AI: Unauthenticated Cross-Origin MCP Tool Invocation via Empty Default Secret

Quick assessment

Affected
Jovancoding Network-AI
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.

Jovan Marinovic Network-AI是Jovan Marinovic个人开发者的一个 TypeScript/Node.js 多智能体编排器，可为任何 AI 智能体堆栈添加协调、防护和治理功能。 Jovan Marinovic Network-AI 5.4.5之前版本存在输入验证错误漏洞，该漏洞源于MCP SSE服务器默认使用空密钥且未验证Authorization标头，同时允许跨域请求，可能导致未经身份验证的攻击者通过诱使用户访问恶意网页来调用所有22个暴露的MCP工具。

CVSS 7.6 · High EPSS 0.22% · P13

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
Jovancoding Network-AI < 5.4.5 affected
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I. Basic Information for CVE-2026-46701

Vulnerability Information
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Vulnerability Title
Network-AI: Unauthenticated Cross-Origin MCP Tool Invocation via Empty Default Secret
Source: CVE Program / CVE List V5
Vulnerability Description
Network-AI is a TypeScript/Node.js multi-agent orchestrator. Prior to version 5.4.5, the MCP SSE server defaults to an empty secret (`process.env['NETWORK_AI_MCP_SECRET'] ?? ''` at `bin/mcp-server.ts:89`), which causes `_isAuthorized` (`lib/mcp-transport-sse.ts:254`) to return `true` unconditionally for every request — no `Authorization` header is required. Simultaneously, `_handleRequest` sets `Access-Control-Allow-Origin: *` (`lib/mcp-transport-sse.ts:272`) on every response, so a cross-origin browser fetch can read the result without restriction. An unauthenticated attacker who can lure a user to a malicious web page can invoke all 22 exposed MCP tools — including `config_set`, `agent_spawn`, and `blackboard_write` — against a default-configured localhost server. Version 5.4.5 patches the issue.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
源验证错误
Source: CVE Program / CVE List V5
Vulnerability Title
Jovan Marinovic Network-AI 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Jovan Marinovic Network-AI是Jovan Marinovic个人开发者的一个 TypeScript/Node.js 多智能体编排器，可为任何 AI 智能体堆栈添加协调、防护和治理功能。 Jovan Marinovic Network-AI 5.4.5之前版本存在输入验证错误漏洞，该漏洞源于MCP SSE服务器默认使用空密钥且未验证Authorization标头，同时允许跨域请求，可能导致未经身份验证的攻击者通过诱使用户访问恶意网页来调用所有22个暴露的MCP工具。
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
Jovancoding Network-AI < 5.4.5 -

II. Public POCs for CVE-2026-46701

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 12098 chars
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Trigger conditions & impact
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III. Intelligence Information for CVE-2026-46701

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Patches & Fixes for CVE-2026-46701 (2)

Vendor Advisories for CVE-2026-46701 (1)

Same Patch Batch · Jovancoding · 2026-07-20 · 9 CVEs total

CVE-2026-54051 9.9 CRITICAL Network-AI has an an OS Command Injection issue
CVE-2026-64623 8.6 HIGH Network-AI before 5.13.4 Cryptographic Signature Verification Bypass
CVE-2026-64622 7.5 HIGH Network-AI 5.12.2 through 5.13.3 Missing Authorization via ApprovalInbox
CVE-2026-58484 7.1 HIGH Network-AI: Poisoned environment backup manifest allows arbitrary recursive deletion durin
CVE-2026-58481 6.5 MEDIUM Network-AI: AgentRuntime sandbox path-prefix checks allow file access outside the configur
CVE-2026-58413 6.1 MEDIUM EnvironmentManager.restore() backup ID path traversal copies arbitrary directories into en
CVE-2026-58482 5.9 MEDIUM Network-AI: ApprovalInbox HTTP server has no authentication — anyone can approve pending a
CVE-2026-58414 5.5 MEDIUM Network-AI: EnvironmentManager.backup() follows symlinked directories and copies files out

IV. Related Vulnerabilities

Same product: Network-AI
Same vendor: Jovancoding
Same weakness: CWE-346

V. Comments for CVE-2026-46701

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