Incorrect Authorization in Google Chrome CustomTabs on Android

Publication date: 2026-08-25

Last updated on: 2026-08-25

Assigner: Chrome

Description

Incorrect authorization in CustomTabs in Google Chrome on on Android prior to 152.0.7977.65 allowed a local attacker to bypass web origin policy via a co-installed app. (Chromium security severity: Medium)

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-08-25

Last Modified

2026-08-25

Generated

2026-08-26

AI Q&A

2026-08-26

EPSS Evaluated

N/A

NVD

CVE-2026-79222

Affected Vendors & Products

Vendor	Product	Version / Range
google	chrome	to 152.0.7977.65 (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 CustomTabs in Google Chrome on Android. It allows a local attacker to bypass web origin policy through a co-installed app, potentially enabling unauthorized access to sensitive data or actions.

Impact Analysis

If exploited, this vulnerability could allow an attacker to bypass security restrictions, access restricted web content, or perform actions on behalf of the user without proper authorization. This may lead to data theft, unauthorized transactions, or other malicious activities.

Mitigation Strategies

Update Google Chrome on Android to version 152.0.7977.65 or later to address the incorrect authorization issue in CustomTabs.

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