CVE-2026-106378: Privilege elevation in Google Chrome
Description
A privilege elevation vulnerability exists in the sandbox component of Google Chrome on Mac systems prior to version 155.0.8059.39. This flaw allows a remote attacker who has compromised the renderer process to execute arbitrary code outside the sandbox by using a crafted HTML page. The vulnerability has a high severity rating with a CVSS score of 8.3. Google has released an update to address this issue.
CVSS v3.1
Score 8.3high
Affected software
Chrome
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-106378 is a privilege elevation vulnerability in the sandbox of Google Chrome on Mac platforms before version 155.0.8059.39. An attacker who has already compromised the renderer process can exploit this vulnerability via a crafted HTML page to execute arbitrary code outside the sandbox environment. This breaks the sandbox security boundary, potentially leading to full system compromise. The vulnerability is rated with a CVSS v3.1 score of 8.3 (high severity) and requires user interaction to trigger (UI:R).
Potential Impact
Successful exploitation allows an attacker with control over the renderer process to escape the sandbox and execute arbitrary code on the host system with elevated privileges. This can lead to full compromise of the affected Mac system running vulnerable versions of Chrome.
Mitigation Recommendations
Google has released an official fix in Chrome version 155.0.8059.39. Users and administrators should update to this version or later to remediate the vulnerability. No additional mitigation steps are indicated by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Chrome
- Date Reserved
- 2026-10-06T16:37:06.841Z
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://chromereleases.googleblog.com/2026/10/stable-channel-update-for-desktop_086471744.html","vendor":"Google"}]
Threat ID: 6ac5465a2cdf04f656d4a07a
Added to database: 10/06/2026, 19:04:58 UTC
Last enriched: 10/06/2026, 20:35:18 UTC
Last updated: 10/06/2026, 23:08:09 UTC
Views: 2
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