CVE-2026-87508
Analyzed Analyzed - Analysis Complete

Incorrect Authorization in Google Chrome Loader

Publication date: 2026-09-09

Last updated on: 2026-09-09

Assigner: Chrome

Description
Incorrect authorization in Loader in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to bypass web origin policy via a crafted HTML page. (Chromium security severity: Medium)

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Meta Information

Published
2026-09-09
Last Modified
2026-09-09
Generated
2026-09-29
AI Q&A
2026-09-09
EPSS Evaluated
2026-09-27
NVD
CVE-2026-87508
EUVD
EUVD-2026-74357

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
google chrome to 153.0.8010.36 (exc)

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 involves incorrect authorization in the Loader component of Google Chrome before version 153.0.8010.36. A remote attacker could exploit this by using a specially crafted HTML page to bypass the web origin policy, potentially gaining unauthorized access to resources from different origins.

Detection Guidance

This vulnerability involves incorrect authorization in Google Chrome's Loader component. Detection primarily requires checking the installed Chrome version. Run chrome://version/ in Chrome to view the version. If the version is below 153.0.8010.36, the system is vulnerable.

Impact Analysis

This vulnerability could allow an attacker to access sensitive data from other websites you visit, leading to privacy breaches or unauthorized actions on your behalf. It may also enable phishing attacks or data theft if exploited.

Compliance Impact

This vulnerability allows unauthorized access to resources due to incorrect authorization, which could lead to data exposure. For GDPR, this may violate principles of data protection and user rights. For HIPAA, it could risk unauthorized disclosure of protected health information.

Mitigation Strategies

Update Google Chrome to version 153.0.8010.36 or later immediately. This can be done via the browser's built-in update mechanism or by downloading the latest version from Google's official site.

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