What is GHSA-f8h2-c55w-8m5p?

GHSA-f8h2-c55w-8m5p is a security advisory published by GitHub Security Advisories with High severity. Incorrect Authorization in the direct HTTP API tool invocation endpoint in Google mcp-toolbox...

Which CVE IDs does GHSA-f8h2-c55w-8m5p cover?

GHSA-f8h2-c55w-8m5p covers the following CVE IDs: CVE-2026-14537. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-f8h2-c55w-8m5p?

GHSA-f8h2-c55w-8m5p has a CVSS v3 base score of 9.8, published by GitHub Security Advisories.

GHSA-f8h2-c55w-8m5pHighCVSS 9.8

Incorrect Authorization in the direct HTTP API tool invocation endpoint in Google mcp-toolbox...

Vendor

GitHub Security Advisories

Published

July 31, 2026

Last Modified

August 8, 2026

🔗 CVE IDs covered (1)

CVE-2026-14537 →

📋 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.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-14537
https://github.com/googleapis/mcp-toolbox/pull/3435
https://github.com/advisories/GHSA-f8h2-c55w-8m5p