PT-2026-83719 · Google · Cloud Build
CVSS v4.0
9.4
Critical
| Vector | AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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 |
Name of the Vulnerable Software and Affected Versions
Google Cloud Build versions prior to 2026-06-24
Description
An incorrect authorization issue exists in the GitHub Trigger Comment Control within Google Cloud Platform. A remote attacker can bypass expected review boundaries by manipulating webhook suppression and authorization logic, allowing the execution of unreviewed code within the build environment. This flaw could potentially lead to a software supply-chain compromise, as build systems often possess high-level privileges, including access to cloud service accounts, deployment credentials, and signing infrastructure.
Recommendations
No customer action is needed as the issue was patched on 2026-06-24.
Fix
Insufficient Verification of Data Authenticity
Time Of Check To Time Of Use
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Related Identifiers
Affected Products
Cloud Build