CVE-2026-113023

Modified Modified - Updated After Analysis

Improper Input Validation in Google Chrome Extensions

Publication date: 2026-10-20

Last updated on: 2026-11-03

Assigner: Chrome

Description

Incorrect authorization in Extensions in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to bypass system access restrictions via a crafted Chrome extension. (Chromium security severity: Low)

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-2026-113023

EUVD

EUVD-2026-105708

Affected Vendors & Products

Vendor	Product	Version / Range
google	chrome	to 156.0.8078.47 (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.
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 involves improper input validation in Google Chrome's Extensions feature. A remote attacker could exploit this by crafting a malicious HTML page to potentially execute arbitrary code outside the browser's sandbox, bypassing security restrictions.

Detection Guidance

This vulnerability involves improper input validation in Google Chrome's Extensions. Detection requires checking Chrome version and inspecting extensions for malicious activity. Update Chrome to 156.0.8078.47 or later to patch the issue. No specific commands are provided in the context for detection.

Impact Analysis

If exploited, this vulnerability could allow an attacker to run malicious code on your system outside Chrome's sandbox. This might lead to unauthorized access to your data, installation of malware, or other malicious activities depending on the attacker's goals.

Compliance Impact

This vulnerability involves improper input validation in Google Chrome, allowing remote attackers to execute arbitrary code outside the sandbox via crafted HTML pages. Such code execution could lead to unauthorized data access, modification, or exfiltration, which may violate GDPR (data protection) and HIPAA (healthcare data privacy) requirements for safeguarding sensitive information.

Mitigation Strategies

Update Google Chrome to version 156.0.8078.47 or later to address the improper input validation issue.

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