# CVE-2026-85267: Cross-Site WebSocket Hijacking in Google Cloud Shell

> CVE-2026-85267: Cross-Site WebSocket Hijacking in Google Cloud Shell. CVSS 8.7 (CVSS 4.0).

Canonical: https://rewindex.com/cve/CVE-2026-85267
Last updated: 2026-10-20T19:18:51Z

- Published: 2026-10-20 09:16 UTC · Updated: 2026-10-20 19:18 UTC · Assigner: GoogleCloud
- CVSS: 8.7 (CVSS 4.0) · Severity: High
- EPSS: 0.21%, 11th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-1385

## 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 vendors and products

- Google Cloud: Cloud Shell

## Tracked companies

- [Google Cloud](https://rewindex.com/company/google-cloud.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-85267)
- [NVD entry](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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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2026-85267 · Markdown: https://rewindex.com/cve/CVE-2026-85267.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-85267 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T02:14:30.804Z