CVE-2026-15829

A SQL injection (CWE-89) and security boundary bypass (CWE-863) vulnerability exists in the prebuilt BigQuery forecasting tool (bigquery-forecast) of googleapis/mcp-toolbox. The tool accepts client-controlled parameters (data_col, timestamp_col, and id_cols) as plain strings and interpolates them unescaped via fmt.Sprintf directly into a generated AI.FORECAST table-valued SELECT statement. While MCP Toolbox utilizes an allowedDatasets mechanism to restrict queries, this defense only validates the history_data parameter; the final assembled query is executed without re-validation. An attacker can break out of the string literal fields (such as timestamp_col) to inject a valid multi-statement or cross-dataset query block. This allows an unauthorized user to bypass the operator-configured allowedDatasets boundary and read arbitrary BigQuery tables.

CVSS

No CVSS.

References

Link	Resource
https://github.com/googleapis/mcp-toolbox/pull/3324

Configurations

No configuration.

History

21 Jul 2026, 17:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-21 17:17

Updated : 2026-07-22 19:16

NVD link : CVE-2026-15829

Mitre link : CVE-2026-15829

CVE.ORG link : CVE-2026-15829

JSON object : View

Products Affected

No product.

CWE

CWE-89

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

CWE-863

Incorrect Authorization

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