CVE-2026-14537 — Authorization Bypass in MCP Toolbox Legacy HTTP Endpoints
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 prote…
Published: 2026-07-31 · CVSS: 8.1 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7