CVE-2026-113277

Modified Modified - Updated After Analysis

Out of Bounds Read in CustomTabs in Google Chrome on Android

Publication date: 2026-10-20

Last updated on: 2026-11-03

Assigner: Chrome

Description

Information leak in CustomTabs in Google Chrome on on Android prior to 156.0.8078.47 allowed a local attacker to leak sensitive information via a co-installed app. (Chromium security severity: Medium)

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-10-20

Last Modified

2026-11-03

Generated

2026-11-10

AI Q&A

2026-10-21

EPSS Evaluated

2026-11-08

NVD

CVE-2026-113277

EUVD

EUVD-2026-105608

Affected Vendors & Products

Vendor	Product	Version / Range
google	chrome	to 156.0.8078.47 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-200	The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
CWE-125	The product reads data past the end, or before the beginning, of the intended buffer.

Attack-Flow Graph

Executive Summary

This vulnerability is an out-of-bounds read issue in CustomTabs, a feature in Google Chrome on Android. It allows a remote attacker to read memory inside the sandbox by tricking a user into visiting a specially crafted HTML page. The issue exists in Chrome versions prior to 156.0.8078.47.

Detection Guidance

This vulnerability is specific to Google Chrome on Android prior to version 156.0.8078.47. Detection involves checking the installed Chrome version. Use the command 'dumpsys package com.android.chrome | grep versionName' on Android to verify the version. If the version is below 156.0.8078.47, the system is vulnerable.

Impact Analysis

If exploited, this vulnerability could allow an attacker to access sensitive data stored in memory, potentially leading to unauthorized information disclosure. Users could be affected if they visit a malicious webpage while using an outdated version of Chrome on Android.

Compliance Impact

This vulnerability allows a remote attacker to read memory inside the sandbox via a crafted HTML page. This could potentially expose sensitive data, which may impact compliance with GDPR (data protection) and HIPAA (health information privacy) by increasing the risk of unauthorized data access or disclosure.

Mitigation Strategies

Update Google Chrome on Android to version 156.0.8078.47 or later to address the out of bounds read vulnerability in CustomTabs.

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