CVE-2026-14537

EUVD-2026-51371
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 12.09%
Affected Products (NVD)
VendorProductVersion
googlemcp_toolbox_for_databases
1.3.0
googlemcp_toolbox_for_databases
1.4.0
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://github.com/googleapis/mcp-toolbox/pull/3435