CVE-2026-12879

Cross-Tenant Data Exfiltration in Apigee via BigQuery Confused Deputy

State: Published
Severity: 5.9 Medium
Published: Jul 9, 2026
Updated: Jul 9, 2026
Reserved: Jun 22, 2026

Description

An Improper Input Validation vulnerability in BigQuery DAO in Google Cloud Apigee versions prior to 2026-06-12 on Google Cloud Platform allows an authenticated attacker to exfiltrate cross-tenant data.

This vulnerability was patched on 12 June 2026 on the Apigee Servers, and no customer action is needed.

Scores

CVSS	Score	Vector	Source
4.0	5.9 Medium	CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:L/SI:L/SA:L/U:Clear	GoogleCloud

Weaknesses

CWE-610 Externally Controlled Reference to a Resource in Another Sphere
CWE-441 Unintended Proxy or Intermediary ('Confused Deputy')

Affected Products

Product	Versions
ApigeeGoogle Cloud	before 2026-06-12Affected

References

https://cloud.google.com/apigee/docs/release-notes#July_08_2026

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