CVE-2026-12453
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Chrome 149.0.7827.155 Same Origin Policy Bypass via Crafted HTML

Publication date: 2026-06-17

Last updated on: 2026-06-17

Assigner: Chrome

Description
Insufficient validation of untrusted input in Input in Google Chrome prior to 149.0.7827.155 allowed a remote attacker who had compromised the renderer process to bypass same origin policy via a crafted HTML page. (Chromium security severity: High)
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Meta Information
Published
2026-06-17
Last Modified
2026-06-17
Generated
2026-06-17
AI Q&A
2026-06-17
EPSS Evaluated
N/A
NVD
CVE-2026-12453
EUVD
EUVD-2026-37538
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
google chrome 149.0.7827.155
Helpful Resources
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 involves insufficient validation of untrusted input in Google Chrome versions prior to 149.0.7827.155. It allows a remote attacker who has compromised the renderer process to bypass the same origin policy by using a specially crafted HTML page.

Impact Analysis

The vulnerability can allow an attacker to bypass the same origin policy, which is a critical security mechanism that restricts how documents or scripts loaded from one origin can interact with resources from another origin. This could lead to unauthorized access to sensitive information or actions within the browser context.

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