CVE-2026-106398: Incorrect authorization in Google Chrome
Description
Incorrect authorization in Media in Google Chrome prior to 155.0.8059.39 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: Medium)
CVSS v3.1
Score 4.3medium
Affected software
Chrome
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-106398 is an authorization flaw in Google Chrome's Media component that permits a remote attacker to bypass access controls and leak data from other origins through a specially crafted HTML page. This vulnerability affects versions of Chrome before 155.0.8059.39 and was resolved in that version. The flaw does not have a CVSS score but is rated medium severity by the Chromium security team.
Potential Impact
Successful exploitation allows an attacker to leak cross-origin data, potentially exposing sensitive information from other websites or web applications loaded in the browser. This can compromise user privacy and data confidentiality.
Mitigation Recommendations
Users should update Google Chrome to version 155.0.8059.39 or later, where this vulnerability has been fixed. No additional mitigation steps are required as the vendor has provided an official fix.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Chrome
- Date Reserved
- 2026-10-06T16:38:05.414Z
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://chromereleases.googleblog.com/2026/10/stable-channel-update-for-desktop_086471744.html","vendor":"Google"}]
Threat ID: 6ac5465e2cdf04f656d4a098
Added to database: 10/06/2026, 19:05:02 UTC
Last enriched: 10/06/2026, 19:34:24 UTC
Last updated: 10/06/2026, 22:28:21 UTC
Views: 3
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