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CVE-2026-11719

Quick assessment

Affected
Google MCP Toolbox for Databases (googleapis/mcp-toolbox)
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.

Google MCP Toolbox for Databases (googleapis/mcp-toolbox)是美国Google公司的一个数据库管理工具箱。 Google MCP Toolbox for Databases (googleapis/mcp-toolbox) 1.3.0版本存在授权问题漏洞，该漏洞源于协议处理程序缺少作用域强制检查，可能导致已认证的低权限客户端绕过工具作用域限制并执行高权限工具。

AI Predicted 7.5 Difficulty: Easy EPSS 0.14% · P4

Affected Version Matrix 1

VendorProduct Version RangeStatus
Google MCP Toolbox for Databases (googleapis/mcp-toolbox) 1.3.0 affected
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I. Basic Information for CVE-2026-11719

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
An authenticated authorization bypass vulnerability exists in MCP Toolbox for Databases due to missing scope enforcement across older protocol handlers. While the 2025-11-25 protocol version handler correctly enforces per-tool restrictions defined by scopesRequired, older supported protocol versions (2025-06-18, 2025-03-26, and 2024-11-05) omit this check. An authenticated client with low-privilege tokens (e.g., read) can bypass the intended per-tool scope restrictions and execute high-privilege tools (e.g., admin) simply by specifying an older protocol version in the MCP-Protocol-Version header, or by omitting the header entirely (which causes the server to default to the vulnerable 2024-11-05 handler).
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
Google MCP Toolbox for Databases (googleapis/mcp-toolbox) 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Google MCP Toolbox for Databases (googleapis/mcp-toolbox)是美国Google公司的一个数据库管理工具箱。 Google MCP Toolbox for Databases (googleapis/mcp-toolbox) 1.3.0版本存在授权问题漏洞，该漏洞源于协议处理程序缺少作用域强制检查，可能导致已认证的低权限客户端绕过工具作用域限制并执行高权限工具。
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
Google MCP Toolbox for Databases (googleapis/mcp-toolbox) 1.3.0 -

II. Public POCs for CVE-2026-11719

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III. Intelligence Information for CVE-2026-11719

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Patches & Fixes for CVE-2026-11719 (2)

Same Patch Batch · Google · 2026-06-18 · 4 CVEs total

CVE-2026-11718 Google MCP Toolbox for Databases (googleapis/mcp-toolbox) 授权问题漏洞
CVE-2026-11717 Google MCP Toolbox for Databases (googleapis/mcp-toolbox) 授权问题漏洞
CVE-2026-28573 Google Android 拒绝服务漏洞

IV. Related Vulnerabilities

Same product: MCP Toolbox for Databases (googleapis/mcp-toolbox)
Same vendor: Google
Same weakness: CWE-862

V. Comments for CVE-2026-11719

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