CVE-2026-106384: Missing authorization in Google Chrome
Description
A missing authorization vulnerability in the SiteIsolation feature of Google Chrome prior to version 155.0.8059.39 allows a remote attacker who has compromised the renderer process to bypass site isolation protections via a crafted HTML page. This vulnerability has been assigned a medium severity level by Chromium security. A stable channel update addressing this issue has been released by Google.
Affected software
Chrome
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-106384 is a vulnerability in Google Chrome's SiteIsolation feature where missing authorization checks allow an attacker with control over the renderer process to bypass site isolation. This bypass could be triggered by a crafted HTML page. The issue affects Chrome versions before 155.0.8059.39. Google has released a stable channel update to fix this vulnerability.
Potential Impact
An attacker who has already compromised the renderer process can exploit this vulnerability to bypass site isolation, potentially allowing cross-site data access that SiteIsolation is designed to prevent. The severity is rated medium by Chromium security, indicating a moderate risk that requires timely remediation.
Mitigation Recommendations
Users and administrators should update Google Chrome to version 155.0.8059.39 or later, where this vulnerability is fixed. The vendor advisory confirms an official fix is available via the stable channel update. No additional mitigations are indicated.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Chrome
- Date Reserved
- 2026-10-06T16:37:18.881Z
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://chromereleases.googleblog.com/2026/10/stable-channel-update-for-desktop_086471744.html","vendor":"Google"}]
Threat ID: 6ac5465c2cdf04f656d4a087
Added to database: 10/06/2026, 19:05:00 UTC
Last enriched: 10/06/2026, 20:34:43 UTC
Last updated: 10/06/2026, 22:48:21 UTC
Views: 4
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