CVE-2026-9991
Undergoing Analysis Undergoing Analysis - In Progress
Inappropriate Implementation in Google Chrome Media on Windows Leads to Cross-Origin Data Leak

Publication date: 2026-05-28

Last updated on: 2026-06-01

Assigner: Chrome

Description
Inappropriate implementation in Media in Google Chrome on Windows prior to 148.0.7778.216 allowed a remote attacker who had compromised the renderer process to leak cross-origin data via a crafted HTML page. (Chromium security severity: High)
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Meta Information
Published
2026-05-28
Last Modified
2026-06-01
Generated
2026-06-19
AI Q&A
2026-05-29
EPSS Evaluated
2026-06-18
NVD
CVE-2026-9991
EUVD
EUVD-2026-33133
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
google chrome to 148.0.7778.216 (exc)
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-200 The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
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Executive Summary

This vulnerability is an inappropriate implementation in the Media component of Google Chrome on Windows versions prior to 148.0.7778.216. It allows a remote attacker who has already compromised the renderer process to leak cross-origin data by using a specially crafted HTML page.

Impact Analysis

The vulnerability can lead to unauthorized disclosure of sensitive information across different origins in the browser. An attacker who has compromised the renderer process can exploit this flaw to access data from other websites or web applications that the user has open, potentially leading to privacy breaches or data leakage.

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