CVE-2026-106391

Analyzed Analyzed - Analysis Complete

Incorrect Authorization in Google Chrome WebShare on Android

Publication date: 2026-10-06

Last updated on: 2026-10-07

Assigner: Chrome

Description

Incorrect authorization in WebShare in Google Chrome on on Android prior to 155.0.8059.39 allowed a remote attacker who had compromised the renderer process to spoof UI elements via a crafted HTML page. (Chromium security severity: Medium)

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-10-06

Last Modified

2026-10-07

Generated

2026-10-19

AI Q&A

2026-10-07

EPSS Evaluated

2026-10-18

NVD

CVE-2026-106391

EUVD

EUVD-2026-93746

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 WebShare on Google Chrome for Android. A remote attacker who has compromised the renderer process could exploit this to spoof UI elements by using a crafted HTML page.

Detection Guidance

This vulnerability involves incorrect authorization in WebShare on Google Chrome for Android. Detection requires checking Chrome version and inspecting renderer processes for suspicious activity. No specific commands are provided in the CVE details.

Impact Analysis

If exploited, this vulnerability could trick users into interacting with fake UI elements, potentially leading to unintended actions like sharing sensitive data or granting permissions without their knowledge.

Compliance Impact

This vulnerability involves incorrect authorization in WebShare on Google Chrome for Android, allowing a remote attacker to spoof UI elements. While not directly linked to GDPR or HIPAA, such vulnerabilities could potentially lead to unauthorized data exposure or manipulation, which may impact compliance with these regulations if user data is compromised.

Mitigation Strategies

Update Google Chrome on Android to version 155.0.8059.39 or later to address the incorrect authorization issue in WebShare.

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