CVE-2026-85267

EUVD-2026-104858
A Cross-Site WebSocket Hijacking vulnerability in Cloud Shell prior to 2026-07-22 on Google Cloud Platform allows an unauthenticated attacker to hijack an active Cloud Shell session and exfiltrate the user's OAuth access token using a cross-origin WebSocket request.


This vulnerability was patched on 22 July 2026, and no customer action is needed.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
UNKNOWN
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Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: 10.75%
Common Weakness Enumeration
References
https://docs.cloud.google.com/shell/docs/release-notes#July_28_2026