Vulnerability · Published Apr 23, 2026 · Assigned by GoogleCloud
CVE-2026-3259Sensitive Data Disclosure in BigQuery via Materialized View Error Messages
High 7.1
In plain English
A high-severity security flaw in BigQuery from Google Cloud. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 13% of all known vulnerabilities).
Official description
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 (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Google Cloud | BigQuery | 0 – before 01/29/2026 |
Weakness: CWE-209 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/U:Clear