CVE-2026-113321

Modified Modified - Updated After Analysis

Use after Free in Google Chrome Extensions

Publication date: 2026-10-20

Last updated on: 2026-11-03

Assigner: Chrome

Description

Missing authorization in Extensions in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to obtain cross-origin data via a crafted Chrome extension. (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-2026-113321

EUVD

EUVD-2026-105550

Affected Vendors & Products

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

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-862	The product does not perform an authorization check when an actor attempts to access a resource or perform an action.
CWE-416	The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

Attack-Flow Graph

Executive Summary

This vulnerability is a use-after-free issue in Google Chrome's Extensions component. It occurs when a program tries to use memory that has already been freed, potentially allowing a remote attacker to execute arbitrary code within the browser's sandbox. The attack requires a specially crafted HTML page to trigger the flaw.

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. If your version is below 156.0.8078.47, the system is vulnerable. Update Chrome to version 156.0.8078.47 or later to mitigate the issue.

Impact Analysis

An attacker could exploit this to run malicious code on your device through a malicious webpage. This could lead to unauthorized access to data, installation of malware, or further compromise of your system, even though the sandbox limits some actions.

Compliance Impact

This vulnerability is a use-after-free issue in Google Chrome's Extensions component, allowing remote attackers to execute arbitrary code inside the sandbox. While not directly tied to compliance standards, such vulnerabilities could potentially lead to unauthorized data access or processing, which may violate GDPR's data protection principles or HIPAA's security requirements for protected health information.

Mitigation Strategies

Update Google Chrome to version 156.0.8078.47 or later to address the use-after-free vulnerability in Extensions.

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