CVE-2026-106402

Analyzed Analyzed - Analysis Complete

Incorrect Authorization in Google Chrome Extensions Allows UI Spoofing

Publication date: 2026-10-06

Last updated on: 2026-10-07

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)

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-10-06

Last Modified

2026-10-07

Generated

2026-10-19

AI Q&A

2026-10-06

EPSS Evaluated

2026-10-18

NVD

CVE-2026-106402

EUVD

EUVD-2026-93710

Affected Vendors & Products

Vendor	Product	Version / Range
google	chrome	to 155.0.8059.39 (exc)

Helpful Resources

Exploitability

CWE

KEV

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.

Attack-Flow Graph

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.

Compliance Impact

This vulnerability involves incorrect authorization in Google Chrome extensions, enabling UI spoofing through social engineering. While it does not directly impact GDPR or HIPAA compliance, such vulnerabilities could potentially lead to unauthorized data access or manipulation, which may violate these regulations if exploited.

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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