CVE-2026-3259: Google Cloud Bigquery

High severity, CVSS 7.1. EPSS: 0.4% chance of exploitation in the next 30 days.

A Generation of Error Message Containing Sensitive Information vulnerability in the Materialized View Refresh mechanism in Google BigQuery on Google Cloud Platform allows an authenticated user to potentially disclose sensitive data using a crafted materialized view that triggers a runtime error during the refresh process. This vulnerability was patched on 29 January 2026, and no customer action is needed.

Affected products

• Google Cloud Bigquery

Published 2026-04-23. Last modified 2026-06-17.