CVE-2026-14538

Katalog CVE

CVSS 7.7 · High EPSS 0,20%

Kerentanan Improper Authorization pada google mcp toolbox for databases. Skor CVSS 3.1 7.7 (High) menurut NVD.

Deskripsi (NVD)

An improper authorization and security-boundary bypass vulnerability in the bigquery-execute-sql tool component of Google mcp-toolbox versions 0.16.1 through 1.4.0 allows an authenticated attacker to bypass allowedDatasets validation checks. The toolbox relies on the BigQuery dry-run API to enforce dataset restrictions, but due to a fail-open logic flaw, it bypasses validation when the API returns an empty array for specialized constructs. This allows the attacker to extract structural DDL schemas for explicitly excluded datasets via INFORMATION_SCHEMA, and access downstream federated row data via EXTERNAL_QUERY connections.

Rincian

Terbit di NVD

31 Juli 2026

Terakhir diubah

8 Agustus 2026

Status NVD

Analyzed

CVSS 3.1

7.7 (High), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-285: Improper Authorization
CWE-863: Incorrect Authorization

EPSS (30 hari)

0,20% peluang dieksploitasi; lebih tinggi dari 9,6% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/googleapis/mcp-toolbox/pull/3452 issue tracking · patch