CVE-2026-106388: Missing authorization in Google Chrome
Description
A missing authorization vulnerability in the DataTransfer component of Google Chrome prior to version 155.0.8059.39 allows a remote attacker who has compromised the renderer process to access sensitive information via a crafted HTML page. The vulnerability has a medium severity rating and a CVSS score of 5.3.
CVSS v3.1
Score 5.3medium
Affected software
Chrome
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-106388 describes a missing authorization issue in the DataTransfer feature of Google Chrome versions before 155.0.8059.39. This flaw enables a remote attacker, with control over the renderer process, to obtain sensitive data by leveraging a specially crafted HTML page. The vulnerability is rated medium severity by Chromium security and has a CVSS 3.1 base score of 5.3, indicating a network attack vector with high complexity and requiring user interaction, resulting in confidentiality impact only.
Potential Impact
An attacker who has already compromised the renderer process can exploit this vulnerability to access sensitive information that should be protected by authorization controls within the DataTransfer component. There is no impact on integrity or availability reported. The vulnerability does not appear to be actively exploited in the wild.
Mitigation Recommendations
Google has released a stable channel update for desktop Chrome that addresses this vulnerability in version 155.0.8059.39. Users and administrators should update to this version or later to remediate the issue. Since this is a client-side browser vulnerability, applying the official update is the primary mitigation.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Chrome
- Date Reserved
- 2026-10-06T16:37:31.006Z
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://chromereleases.googleblog.com/2026/10/stable-channel-update-for-desktop_086471744.html","vendor":"Google"}]
Threat ID: 6ac5465c2cdf04f656d4a08b
Added to database: 10/06/2026, 19:05:00 UTC
Last enriched: 10/06/2026, 20:34:23 UTC
Last updated: 10/06/2026, 22:48:16 UTC
Views: 3
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