CVE-2026-113289

Modified Modified - Updated After Analysis

Improper Input Validation in Google Chrome Leads to Code Execution

Publication date: 2026-10-20

Last updated on: 2026-11-03

Assigner: Chrome

Description

Incorrect authorization in PerformanceAPIs in Google Chrome 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-2026-113289

EUVD

EUVD-2026-105538

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 PerformanceAPIs within Google Chrome versions before 156.0.8078.47. A remote attacker could exploit this by crafting a malicious HTML page to potentially execute arbitrary code inside the browser's sandbox.

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.

Impact Analysis

If exploited, this vulnerability could allow an attacker to run malicious code on your device through a specially designed webpage. This could lead to unauthorized access, data theft, or further compromise of your system while browsing.

Compliance Impact

This vulnerability could lead to data breaches, which may violate GDPR (if personal data is exposed) or HIPAA (if protected health information is compromised). Organizations must ensure timely patching to maintain compliance.

Mitigation Strategies

Update Google Chrome to version 156.0.8078.47 or later to address the improper input validation flaw in PerformanceAPIs.

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