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CVE-2026-19244— HKUDS nanobot MCP enabledTools Scope mcp.py connect_mcp_servers access control

Quick assessment

Affected
HKUDS nanobot
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Data Intelligence Lab@HKU nanobot是Data Intelligence Lab@HKU大学开源的一款机器学习工具。 Data Intelligence Lab@HKU nanobot 0.2.1及之前版本存在权限许可和访问控制问题漏洞，该漏洞源于MCP enabledTools Scope Handler组件中nanobot/agent/tools/mcp.py文件的connect_mcp_servers函数存在访问控制不当问题，可能导致远程攻击。

CVSS 4.7 · Medium EPSS 0.47% · P39

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 3

VendorProduct Version RangeStatus
HKUDS nanobot 0.2.0 affected
0.2.1 affected
0.3.0 unaffected
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I. Basic Information for CVE-2026-19244

Vulnerability Information
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Vulnerability Title
HKUDS nanobot MCP enabledTools Scope mcp.py connect_mcp_servers access control
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was detected in HKUDS nanobot up to 0.2.1. The affected element is the function connect_mcp_servers of the file nanobot/agent/tools/mcp.py of the component MCP enabledTools Scope Handler. Performing a manipulation results in improper access controls. The attack is possible to be carried out remotely. The exploit is now public and may be used. Upgrading to version 0.3.0 is sufficient to fix this issue. The patch is named 4436. You should upgrade the affected component. Multiple issues were reported to the project. They reacted with a high level of professionalism and kindness: "Both reports describe the same root cause: MCP resource and prompt wrappers could be registered outside the intended enabledTools scope. The registration boundary was corrected".
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
访问控制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Data Intelligence Lab@HKU nanobot 权限许可和访问控制问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Data Intelligence Lab@HKU nanobot是Data Intelligence Lab@HKU大学开源的一款机器学习工具。 Data Intelligence Lab@HKU nanobot 0.2.1及之前版本存在权限许可和访问控制问题漏洞，该漏洞源于MCP enabledTools Scope Handler组件中nanobot/agent/tools/mcp.py文件的connect_mcp_servers函数存在访问控制不当问题，可能导致远程攻击。
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
HKUDS nanobot 0.2.0 cpe:2.3:a:nanobot:nanobot:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-19244

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III. Intelligence Information for CVE-2026-19244

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Patches & Fixes for CVE-2026-19244 (1)

Vendor Advisories for CVE-2026-19244 (1)

Proof of Concept for CVE-2026-19244 (2)

Other References for CVE-2026-19244 (4)

Same Patch Batch · HKUDS · 2026-08-07 · 5 CVEs total

CVE-2026-61808 9.8 CRITICAL LightRAG: Missing Authentication for Critical API Functions in Default Configuration
CVE-2026-19243 6.3 MEDIUM HKUDS nanobot Shell Allowlist shell.py ExecTool._spawn os command injection
CVE-2026-19246 6.3 MEDIUM HKUDS nanobot Provider-returned Image URL image_generation.py _download_image_data_url ser
CVE-2026-19245 3.3 LOW HKUDS nanobot Login-shell Environment shell.py ExecTool._prepare_command information discl

IV. Related Vulnerabilities

Same product: nanobot
Same vendor: HKUDS
Same weakness: CWE-284

V. Comments for CVE-2026-19244

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