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CVE-2026-3259— Sensitive Data Disclosure in BigQuery via Materialized View Error Messages

Quick assessment

Affected
Google Cloud BigQuery
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Google BigQuery是美国谷歌（Google）公司的一个支持大规模数据分析与高性能查询处理的云数据仓库服务。 Google BigQuery存在安全漏洞，该漏洞源于物化视图刷新机制生成包含敏感信息的错误消息，经过身份验证的用户可利用特制物化视图在刷新过程中触发运行时错误，可能导致敏感数据泄露。

AI Predicted 6.5 Difficulty: Moderate EPSS 0.23% · P13

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage

Affected Version Matrix 1

VendorProduct Version RangeStatus
Google Cloud BigQuery < 01/29/2026 affected
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I. Basic Information for CVE-2026-3259

Vulnerability Information
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Vulnerability Title
Sensitive Data Disclosure in BigQuery via Materialized View Error Messages
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
通过错误消息导致的信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
Google BigQuery 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Google BigQuery是美国谷歌（Google）公司的一个支持大规模数据分析与高性能查询处理的云数据仓库服务。 Google BigQuery存在安全漏洞，该漏洞源于物化视图刷新机制生成包含敏感信息的错误消息，经过身份验证的用户可利用特制物化视图在刷新过程中触发运行时错误，可能导致敏感数据泄露。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Google Cloud BigQuery 0 ~ 01/29/2026 -

II. Public POCs for CVE-2026-3259

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III. Intelligence Information for CVE-2026-3259

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IV. Related Vulnerabilities

Same product: BigQuery
Same vendor: Google Cloud
Same weakness: CWE-209

V. Comments for CVE-2026-3259

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