8.1High
CVE-2026-14537Authorization Bypass in MCP Toolbox Legacy HTTP Endpoints
Description
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.
Weakness (CWE):
CWE-863
Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.
Affected products and versions
| Vendor | Product | Versions | |
|---|---|---|---|
| mcp-toolbox | 1.3.0, v1.4.0 | ||
| mcp toolbox for databases | 1.3.0 |
References and patches
- https://github.com/googleapis/mcp-toolbox/pull/3435 Issue TrackingPatch
CPE matches (NVD) (2)
cpe:2.3:a:google:mcp_toolbox_for_databases:1.3.0:*:*:*:*:*:*:*cpe:2.3:a:google:mcp_toolbox_for_databases:1.4.0:*:*:*:*:*:*:*