CVE-2026-14537
Critical
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.
SeverityCritical
CVSS9.8
Exploit probability—
Product
Google Mcp Toolbox For Databases
PublishedJul 31, 2026
First seenJul 31, 2026
Weakness typeCWE-863Incorrect authorization
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| google mcp_toolbox_for_databases | 1.3.0, 1.4.0 | — |
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