CVE-2026-14537

CriticalCVSS 9.8/10Last modified Oct 23, 2026

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.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Jul 31, 2026
Last modified
Oct 23, 2026
NVD status
Analyzed

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CVE-2026-14537: Critical severity, CVSS 9.8 | Vulnix