Sensitive Data Disclosure in BigQuery via Materialized View Error Messages
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-209.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA BigQuery (Google Cloud) Fixed in 01/29/2026
Timeline
- 2026-10-02 Threatist record created from CVE-2026-3259
- 2026-10-03 Alias added: GHSA-g3wg-j2ff-prcp
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Sources
- CVE-2026-3259 · CVE Program
- CVE-2026-3259 · NVD
- FIRST EPSS
- GHSA-g3wg-j2ff-prcp · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences