Login Request a demo
High severity · published Oct 20, 2026
CVE-2026-85267
Cross-Site WebSocket Hijacking in Google Cloud Shell
8.7
CVSS
0.2%
EPSS
No
On KEV
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.
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 11% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CS
Cloud Shell · Google Cloud
before 2026-07-22 · source: vendor
Affected product
CS
Cloud Shell
Google Cloud
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-85267
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-85267
docs.cloud.google.com
https://docs.cloud.google.com/shell/docs/release-notes#July_28_2026