CVE-2026-11653
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Inappropriate Implementation in Google Chrome Extensions Allows Site Isolation Bypass

Publication date: 2026-06-09

Last updated on: 2026-06-09

Assigner: Chrome

Description
Inappropriate implementation in Extensions in Google Chrome prior to 149.0.7827.103 allowed a remote attacker who had compromised the renderer process to bypass site isolation via a crafted HTML page. (Chromium security severity: High)
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Meta Information
Published
2026-06-09
Last Modified
2026-06-09
Generated
2026-06-09
AI Q&A
2026-06-09
EPSS Evaluated
N/A
NVD
EUVD
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
google chrome to 149.0.7827.103 (exc)
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-20 The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
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Executive Summary

This vulnerability exists in Google Chrome versions prior to 149.0.7827.103. It is caused by an inappropriate implementation in the Extensions component of the browser. A remote attacker who has already compromised the renderer process can exploit this vulnerability by using a specially crafted HTML page to bypass the browser's site isolation feature.

Impact Analysis

The impact of this vulnerability is that an attacker who has compromised the renderer process can bypass site isolation. Site isolation is a security feature designed to separate different websites into different processes to prevent malicious sites from accessing or stealing data from other sites. Bypassing this isolation can allow the attacker to access sensitive information from other sites or processes, potentially leading to data theft or further compromise.

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