EUVD-2026-42584
GHSA-974p-4xqx-2m2q
Severity by source
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Clear
Network vector with high complexity and high privileges; scope changes because cross-tenant confidentiality breach affects resources outside the attacker's own tenant.
Primary rating from Vendor (GoogleCloud).
CVSS VectorVendor: GoogleCloud
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Clear
Lifecycle Timeline
2DescriptionCVE.org
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.
AnalysisAI
Cross-tenant data exfiltration in Google Cloud Apigee (versions prior to 2026-06-12) is possible via improper input validation in the BigQuery Data Access Object (DAO) component. An authenticated attacker with high-privilege access can craft requests that bypass tenant isolation boundaries, accessing confidential data belonging to other Apigee tenants on Google Cloud Platform. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires an authenticated session with high-privilege access to Google Cloud Apigee (PR:H per CVSS vector). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 vector (AV:N/AC:H/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:L/SI:L/SA:L) yields a score of 5.9 (Medium), but the raw score understates the business impact in a multi-tenant cloud context. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An authenticated attacker with high-privilege access to a Google Cloud Apigee instance - such as a malicious insider, a compromised service account, or a rogue tenant - crafts a specially constructed BigQuery DAO request that exploits the input validation gap to reference another tenant's BigQuery dataset rather than their own. Due to high attack complexity (AC:H), the attacker likely needs knowledge of tenant data layout or must iterate requests to identify accessible cross-tenant resources. … |
| Remediation | No customer action is required. … Detailed patch versions, workarounds, and compensating controls in full report. |
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