CVE-2026-11719: Google MCP Toolbox for Databases (googleapis/mcp-toolbox) vulnerability
Google · MCP Toolbox for Databases (googleapis/mcp-toolbox)
Affected: Google MCP Toolbox for Databases (googleapis/mcp-toolbox) · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 3% of scored CVEs
DescriptionCVE.org
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).
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- Google · MCP Toolbox for Databases (googleapis/mcp-toolbox)1.3.0
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CoverageNo articles yet
No CyberSIXT article names CVE-2026-11719 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.