VULNERABILITY INTELLIGENCE

CVE-2026-14537

CVSS score9.8 CRITICAL
EPSS probability0.25%
CISA KEVNot currently listed
Published2026-07-31
Last modified2026-10-23
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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 classification

  • cve-coordination@google.com: CWE-863

Primary references