CVE-2026-87469

Analyzed Analyzed - Analysis Complete

Improper Input Validation in Google Chrome Extensions

Publication date: 2026-09-09

Last updated on: 2026-09-15

Assigner: Chrome

Description

Improper input validation in Extensions in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to bypass web origin policy into a privileged page via crafted network traffic. (Chromium security severity: Low)

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-09-09

Last Modified

2026-09-15

Generated

2026-09-29

AI Q&A

2026-09-09

EPSS Evaluated

2026-09-27

NVD

CVE-2026-87469

EUVD

EUVD-2026-74468

Affected Vendors & Products

Vendor	Product	Version / Range
google	chrome	to 153.0.8010.36 (exc)

Helpful Resources

Exploitability

CWE

KEV

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.

Attack-Flow Graph

Executive Summary

This vulnerability involves improper input validation in Google Chrome's Extensions feature. A remote attacker could exploit this by sending crafted network traffic to bypass the web origin policy and gain access to a privileged page.

Impact Analysis

An attacker could potentially access sensitive pages or data in your browser session. This might lead to unauthorized actions, data theft, or further exploitation of your system through the browser.

Compliance Impact

This vulnerability involves improper input validation in Google Chrome that could allow a remote attacker to bypass web origin policy into a privileged page via crafted network traffic. While the direct impact on compliance standards like GDPR or HIPAA is not explicitly detailed, such vulnerabilities could potentially lead to unauthorized access to sensitive data, which may violate data protection requirements under these regulations.

Mitigation Strategies

Update Google Chrome to version 153.0.8010.36 or later to address the improper input validation issue.

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