CVE-2026-106391: Incorrect authorization in Google Chrome
Description
CVE-2026-106391 is an incorrect authorization vulnerability in the WebShare feature of Google Chrome on Android versions prior to 155.0.8059.39. It allows a remote attacker who has compromised the renderer process to spoof UI elements using a crafted HTML page. The vulnerability has a medium severity rating according to Chromium security. A fix is available in version 155.0.8059.39.
Affected software
Chrome
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves incorrect authorization in the WebShare component of Google Chrome on Android. An attacker with control over the renderer process can exploit this flaw to spoof user interface elements by crafting a malicious HTML page. This could potentially mislead users or interfere with the browser's UI integrity. The issue affects Chrome versions before 155.0.8059.39 on Android. Google has released an official fix in version 155.0.8059.39 as noted in their stable channel update advisory.
Potential Impact
The impact is limited to UI spoofing by an attacker who already has compromised the renderer process. This could lead to user deception or manipulation of browser interface elements, potentially facilitating further attacks or social engineering. The severity is rated medium by Chromium security, indicating moderate risk.
Mitigation Recommendations
Users and administrators should update Google Chrome on Android to version 155.0.8059.39 or later to remediate this vulnerability. The vendor has provided an official fix as per the stable channel update. No additional mitigation steps are indicated by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Chrome
- Date Reserved
- 2026-10-06T16:37:34.383Z
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://chromereleases.googleblog.com/2026/10/stable-channel-update-for-desktop_086471744.html","vendor":"Google"}]
Threat ID: 6ac5465e2cdf04f656d4a091
Added to database: 10/06/2026, 19:05:02 UTC
Last enriched: 10/06/2026, 20:34:11 UTC
Last updated: 10/06/2026, 22:48:12 UTC
Views: 3
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