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.
History

Thu, 22 Oct 2026 04:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Tue, 20 Oct 2026 21:00:00 +0000

Type Values Removed Values Added
First Time appeared Google Cloud
Google Cloud cloud Shell
Vendors & Products Google Cloud
Google Cloud cloud Shell

Tue, 20 Oct 2026 12:45:00 +0000

Type Values Removed Values Added
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.
Title Cross-Site WebSocket Hijacking in Google Cloud Shell
Weaknesses CWE-1385
References
Metrics cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/U:Clear'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GoogleCloud

Published: 2026-10-20T09:16:56.533Z

Updated: 2026-10-20T19:06:21.384Z

Reserved: 2026-09-03T16:36:10.612Z

Link: CVE-2026-85267

cve-icon Vulnrichment

Updated: 2026-10-20T19:06:15.596Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-20T10:17:07.007

Modified: 2026-10-20T19:18:51.900

Link: CVE-2026-85267

cve-icon Redhat

No data.