CVE-2026-15829: CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') in Google MCP Toolbox for Databases (googleapis/mcp-toolbox)
CVE-2026-15829 is a high-severity SQL injection and security boundary bypass vulnerability in Google MCP Toolbox for Databases version 0.13.0. The vulnerability exists in the BigQuery forecasting tool component, where certain client-controlled parameters are interpolated directly into SQL queries without proper escaping. This allows attackers to inject arbitrary SQL, bypass dataset restrictions, and read unauthorized BigQuery tables.
AI Analysis
Technical Summary
This vulnerability involves improper neutralization of special elements used in SQL commands (CWE-89) combined with a security boundary bypass (CWE-863) in the prebuilt BigQuery forecasting tool (bigquery-forecast) of googleapis/mcp-toolbox. The tool accepts parameters such as data_col, timestamp_col, and id_cols as plain strings and inserts them unescaped via fmt.Sprintf into an AI.FORECAST table-valued SELECT statement. Although an allowedDatasets mechanism exists, it only validates the history_data parameter, not the final assembled query. Consequently, an attacker can break out of string literals and inject multi-statement or cross-dataset queries, bypassing dataset restrictions and accessing arbitrary BigQuery tables.
Potential Impact
An attacker with low privileges and no user interaction can exploit this vulnerability to perform SQL injection attacks that bypass operator-configured dataset restrictions. This leads to unauthorized reading of arbitrary BigQuery tables, potentially exposing sensitive data across datasets that should be inaccessible.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, avoid using version 0.13.0 of MCP Toolbox for Databases or restrict access to trusted users only. Review and sanitize all client-controlled parameters before they are used in SQL queries to prevent injection. Monitor official Google advisories for updates and patches addressing this vulnerability.
CVE-2026-15829: CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') in Google MCP Toolbox for Databases (googleapis/mcp-toolbox)
Description
CVE-2026-15829 is a high-severity SQL injection and security boundary bypass vulnerability in Google MCP Toolbox for Databases version 0.13.0. The vulnerability exists in the BigQuery forecasting tool component, where certain client-controlled parameters are interpolated directly into SQL queries without proper escaping. This allows attackers to inject arbitrary SQL, bypass dataset restrictions, and read unauthorized BigQuery tables.
CVSS v4.0
Score 8.6high
Affected software
pkg:github/googleapis/mcp-toolboxRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves improper neutralization of special elements used in SQL commands (CWE-89) combined with a security boundary bypass (CWE-863) in the prebuilt BigQuery forecasting tool (bigquery-forecast) of googleapis/mcp-toolbox. The tool accepts parameters such as data_col, timestamp_col, and id_cols as plain strings and inserts them unescaped via fmt.Sprintf into an AI.FORECAST table-valued SELECT statement. Although an allowedDatasets mechanism exists, it only validates the history_data parameter, not the final assembled query. Consequently, an attacker can break out of string literals and inject multi-statement or cross-dataset queries, bypassing dataset restrictions and accessing arbitrary BigQuery tables.
Potential Impact
An attacker with low privileges and no user interaction can exploit this vulnerability to perform SQL injection attacks that bypass operator-configured dataset restrictions. This leads to unauthorized reading of arbitrary BigQuery tables, potentially exposing sensitive data across datasets that should be inaccessible.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, avoid using version 0.13.0 of MCP Toolbox for Databases or restrict access to trusted users only. Review and sanitize all client-controlled parameters before they are used in SQL queries to prevent injection. Monitor official Google advisories for updates and patches addressing this vulnerability.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-wvx3-gvxv-cmxc
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-15829"]
- Ecosystems
- []
- Database Specific Severity
- HIGH
- Cvss Version
- 4.0
Threat ID: 6a5fcf401010f89cc2151837
Added to database: 07/21/2026, 19:57:52 UTC
Last enriched: 07/30/2026, 08:37:06 UTC
Last updated: 09/02/2026, 22:52:09 UTC
Views: 126
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