---
title: "CVE-2026-85267: Google Cloud Platform Cloud Shell - Cross-Site Request Forgery"
description: "Google Cloud Platform Cloud Shell < 2026-07-22 contains a cross-site WebSocket hijacking vulnerability caused by insufficient origin validation in WebSocket requests, letting unauthenticated attackers hijack active sessions and exfiltrate OAuth tokens, exploit requires victim to have an active Cloud Shell session."
url: https://panop.io/threat-heartbeat/CVE-2026-85267/
---

# CVE-2026-85267 Google Cloud Platform Cloud Shell - Cross-Site Request Forgery

Google Cloud Platform Cloud Shell < 2026-07-22 contains a cross-site WebSocket hijacking vulnerability caused by insufficient origin validation in WebSocket requests, letting unauthenticated attackers hijack active sessions and exfiltrate OAuth tokens, exploit requires victim to have an active Cloud Shell session.

CVSS base score 8.7 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-85267)

## Details

Type

Cross-Site Request Forgery

Impact

Information Disclosure

CVSS 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/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

Published

20 October 2026

Updated

20 October 2026

Weakness

[CWE-1385](https://cwe.mitre.org/data/definitions/1385.html)

## Vendor fix

Update to version 2026-07-22 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-85267](https://nvd.nist.gov/vuln/detail/CVE-2026-85267)
- [https://docs.cloud.google.com/shell/docs/release-notes#July\_28\_2026](https://docs.cloud.google.com/shell/docs/release-notes#July_28_2026)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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