CVE-2026-113147

Modified Modified - Updated After Analysis

Improper Input Validation in Google Chrome WebShare

Publication date: 2026-10-20

Last updated on: 2026-11-03

Assigner: Chrome

Description

Improper input validation in WebShare in Google Chrome prior to 156.0.8078.47 allowed a remote attacker who had compromised the renderer process to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: Medium)

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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-2026-113147

EUVD

EUVD-2026-105514

Affected Vendors & Products

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

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-20	The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

Attack-Flow Graph

Executive Summary

This vulnerability is an improper input validation issue in WebShare in Google Chrome before version 156.0.8078.47. It allows a remote attacker to potentially execute arbitrary code inside the sandbox by tricking a user into visiting a crafted HTML page.

Detection Guidance

This vulnerability is specific to Google Chrome versions prior to 156.0.8078.47. To detect it, check your Chrome version by running: chrome://version/ in the browser address bar. If your version is below 156.0.8078.47, the system is vulnerable.

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 system. It requires user interaction, such as visiting a malicious webpage.

Compliance Impact

This vulnerability involves improper input validation in WebShare, potentially allowing arbitrary code execution inside a sandbox via crafted HTML pages. While it does not directly impact GDPR or HIPAA compliance, such vulnerabilities could lead to unauthorized data access or processing, which may violate these regulations if exploited.

Mitigation Strategies

Update Google Chrome to version 156.0.8078.47 or later immediately. This can be done via the browser's built-in update mechanism or by downloading the latest version from Google's official site.

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