Description
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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Google Cloud | Cloud Shell | < 2026-07-22 | 2026-07-22 |