CVE-2026-8934

MEDIUM

Cross-Project Information Leakage in Google App Engine UI

Title source: cna

Description

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.

References (1)

Core 1

Core References

https://docs.cloud.google.com/support/bulletins#gcp-2026-038

Scores

CVSS v4 6.9

EPSS 0.0051

EPSS Percentile 40.7%

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable yes

Technical Impact partial

Details

CWE

CWE-862

Status published

Products (1)

Google Cloud/Cloud Console UIs < 2026-04-07

Published Jun 22, 2026

Tracked Since Jun 22, 2026