CVE-2026-106398
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Incorrect Authorization in Google Chrome Leads to Data Leak

Publication date: 2026-10-06

Last updated on: 2026-10-06

Assigner: 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)

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Meta Information

Published
2026-10-06
Last Modified
2026-10-06
Generated
2026-10-06
AI Q&A
2026-10-06
EPSS Evaluated
N/A
NVD
CVE-2026-106398
EUVD
EUVD-2026-93758

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
Google Chrome 155.0.8059.39

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-863 The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.

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Executive Summary

This vulnerability is an incorrect authorization issue in Google Chrome's Media component. It allows a remote attacker to access or leak data from different origins than the one intended by the user, using a specially crafted HTML page.

Impact Analysis

An attacker could exploit this to access sensitive cross-origin data, such as user information or content from other websites, potentially leading to privacy breaches or unauthorized data exposure.

Compliance Impact

This vulnerability could lead to unauthorized data exposure, which may violate GDPR's data protection principles or HIPAA's safeguards for protected health information, depending on the data involved.

Mitigation Strategies

Update Google Chrome to version 155.0.8059.39 or later to address the incorrect authorization issue in Media.

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