Vulnerability Details CVE-2026-14537
Incorrect Authorization in the direct HTTP API tool invocation endpoint in Google mcp-toolbox versions v1.3.0 and v1.4.0 allows an unauthenticated attacker to invoke tools protected by the scopeRequired feature via sending tool invocation requests through legacy HTTP endpoints when the --enable-api flag is active.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 12.1%
CVSS Severity
CVSS v3 Score 9.8
Products affected by CVE-2026-14537
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cpe:2.3:a:google:mcp_toolbox_for_databases:1.3.0
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cpe:2.3:a:google:mcp_toolbox_for_databases:1.4.0