CVE-2026-113261

Modified Modified - Updated After Analysis

Use After Free in Google Chrome WebAppInstalls

Publication date: 2026-10-20

Last updated on: 2026-11-03

Assigner: Chrome

Description

Improper input validation in WebAppInstalls in Google Chrome prior to 156.0.8078.47 allowed a remote attacker leveraging social engineering to bypass system access restrictions 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-2026-113261

EUVD

EUVD-2026-105567

Affected Vendors & Products

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

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
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 a use-after-free issue in the WebAppInstalls component of Google Chrome. It occurs when a program tries to use memory that has already been freed, potentially leading to arbitrary code execution outside the browser's sandbox. An attacker could exploit this by tricking a user into visiting a specially crafted HTML page.

Detection Guidance

This vulnerability is specific to Google Chrome versions prior to 156.0.8078.47. Detection involves checking the installed Chrome version. On Linux, run: google-chrome --version. On Windows, check via Control Panel or run: wmic product where name='Google Chrome' get version. If the version is below 156.0.8078.47, the system is vulnerable.

Impact Analysis

If exploited, this vulnerability could allow a remote attacker to run malicious code on your device. This might lead to unauthorized access to sensitive data, installation of malware, or control over your system. The impact depends on your system's permissions and the attacker's goals.

Compliance Impact

This vulnerability allows remote attackers to execute arbitrary code outside the sandbox via crafted HTML pages, which could lead to unauthorized data access or manipulation. This may violate GDPR's data protection requirements and HIPAA's safeguards for protected health information if exploited.

Mitigation Strategies

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

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