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THREAT OPS › Threat News › [NVD] CVE-2026-14537 (CRITICAL 9.8) — 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 wh

[NVD] CVE-2026-14537 (CRITICAL 9.8) — 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 wh

mednvdPublished 2026-07-31

CVE-2026-14537 CVSS: 9.8 CRITICAL Published: 2026-07-31T02:16:27.687

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.

Indicators of compromise

CVE-2026-14537cve

Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-14537