EUVD-2026-38262
GHSA-5xr4-qrm5-m2w8
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/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
Scope changed (S:C) because the attacker reads log data from other GCP projects outside the exploited component's authorization boundary; PR:N confirmed by CVSS 4.0 input.
Primary rating from Vendor (GoogleCloud).
CVSS VectorVendor: GoogleCloud
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/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
A Missing Authorization vulnerability in a GraphQL private API operation of the Google App Engine section of the Cloud Console allows an unauthenticated remote attacker to leak sensitive App Engine request logs from other projects using a specially crafted request.
This vulnerability was patched on 7 April 2026, and no customer action is needed.
AnalysisAI
Cross-project App Engine request log leakage in Google Cloud Console's GraphQL private API exposed sensitive telemetry data to unauthenticated remote attackers. The vulnerability, classified as CWE-862 (Missing Authorization), allowed a specially crafted GraphQL request to bypass authorization controls on the App Engine section of Cloud Console, enabling read access to request logs belonging to arbitrary GCP projects. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The only prerequisite is network access to the Cloud Console GraphQL private API endpoint over the internet, plus knowledge of a target GCP project's identifier. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 base score of 6.9 (AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N) reflects a network-reachable, zero-friction unauthenticated attack with low confidentiality impact on the vulnerable system and no integrity or availability consequence. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An unauthenticated attacker identifies the Cloud Console's GraphQL private API endpoint used by the App Engine section of the UI, then crafts a GraphQL query referencing a target GCP project identifier other than their own. Because the authorization check was absent, the API returns App Engine request logs for the targeted project without validating the caller's entitlement - exposing potentially sensitive HTTP request metadata, paths, or application-level log payloads from the victim project. … |
| Remediation | No customer action is required. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-862 – Missing Authorization
View allSame technique Authentication Bypass
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External POC / Exploit Code
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