CVE-2026-106402
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Incorrect Authorization in Google Chrome Extensions Allows UI Spoofing

Publication date: 2026-10-06

Last updated on: 2026-10-06

Assigner: Chrome

Description
Incorrect authorization in Extensions in Google Chrome prior to 155.0.8059.39 allowed a remote attacker leveraging social engineering to spoof UI elements via a crafted Chrome extension. (Chromium security severity: Medium)

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Meta Information

Published
2026-10-06
Last Modified
2026-10-06
Generated
2026-10-06
AI Q&A
2026-10-06
EPSS Evaluated
N/A
NVD
CVE-2026-106402
EUVD
EUVD-2026-93710

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
Google Chrome 155.0.8059.39

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 Google Chrome's Extensions feature. A remote attacker could exploit it through social engineering to trick users by spoofing UI elements using a specially crafted Chrome extension.

Detection Guidance

This vulnerability involves incorrect authorization in Google Chrome extensions, allowing UI spoofing via crafted extensions. Detection requires checking installed Chrome extensions for untrusted or suspicious ones. Review extensions in chrome://extensions and look for unfamiliar or recently added extensions. No specific commands are provided in the CVE details.

Impact Analysis

The vulnerability could allow an attacker to deceive you into thinking you are interacting with a legitimate UI element, such as a dialog or button, when it is actually controlled by a malicious extension. This could lead to unauthorized actions or data exposure.

Mitigation Strategies

Update Google Chrome to version 155.0.8059.39 or later to address the vulnerability. Remove any untrusted or suspicious Chrome extensions. Avoid installing extensions from untrusted sources. Enable extension verification in Chrome settings if available.

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