CVE-2026-113239

Modified Modified - Updated After Analysis

Heap Buffer Overflow in Google Chrome on Android

Publication date: 2026-10-20

Last updated on: 2026-11-03

Assigner: Chrome

Description

Race condition in SiteIsolation in Google Chrome on on Android prior to 156.0.8078.47 allowed a remote attacker to obtain cross-origin data via a crafted HTML page. (Chromium security severity: Medium)

CVSS 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-2026-113239

EUVD

EUVD-2026-105511

Affected Vendors & Products

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

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-118	The product does not restrict or incorrectly restricts operations within the boundaries of a resource that is accessed using an index or pointer, such as memory or files.
CWE-367	The product checks the state of a resource before using that resource, but the resource's state can change between the check and the use in a way that invalidates the results of the check.

Attack-Flow Graph

Executive Summary

This vulnerability is a range error in SiteIsolation in Google Chrome on Android. It allows a remote attacker to execute arbitrary code inside the sandbox by tricking a user into visiting a crafted HTML page. The issue exists in Chrome versions prior to 156.0.8078.47.

Detection Guidance

This vulnerability affects Google Chrome on Android prior to version 156.0.8078.47. To detect it, check your Chrome version by opening Chrome, going to Settings > About Chrome. If your version is below 156.0.8078.47, the system is vulnerable. Update Chrome immediately to the latest version to mitigate the risk.

Impact Analysis

If exploited, this vulnerability could allow an attacker to run malicious code on your device, potentially stealing data, installing malware, or taking control of your browser. Since it affects Chrome on Android, users of vulnerable versions are at risk.

Compliance Impact

This vulnerability allows remote code execution inside the sandbox via a crafted HTML page, which could lead to unauthorized data access or modification. Such risks may impact compliance with GDPR (data protection) and HIPAA (health data security) by potentially exposing sensitive user information.

Mitigation Strategies

Update Google Chrome on Android to version 156.0.8078.47 or later to address the vulnerability.

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