CVE-2026-17948

Analyzed Analyzed - Analysis Complete

Type Confusion in V8 in Google Chrome

Publication date: 2026-07-30

Last updated on: 2026-08-03

Assigner: Chrome

Description

Type Confusion in V8 in Google Chrome prior to 151.0.7922.72 allowed an attacker who convinced a user to install a malicious extension to execute arbitrary code inside a sandbox via a crafted Chrome Extension. (Chromium security severity: Low)

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-07-30

Last Modified

2026-08-03

Generated

2026-08-19

AI Q&A

2026-07-30

EPSS Evaluated

2026-08-18

NVD

CVE-2026-17948

EUVD

EUVD-2026-50874

Affected Vendors & Products

Vendor	Product	Version / Range
google	chrome	to 151.0.7922.72 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-843	The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type.

Attack-Flow Graph

Executive Summary

This vulnerability is a type confusion issue in V8, the JavaScript engine used by Google Chrome. It allows an attacker to trick the browser into executing arbitrary code within a sandbox by convincing a user to install a malicious Chrome extension.

Detection Guidance

Detection of this vulnerability requires checking the installed version of Google Chrome. If your version is prior to 151.0.7922.72, the system is vulnerable. Use commands like 'google-chrome --version' or check via package manager (e.g., 'apt list --installed | grep chrome' for Debian-based systems).

Additionally, inspect installed extensions for suspicious or unrecognized ones via 'chrome://extensions' in the browser or check extension directories like ~/.config/google-chrome/Default/Extensions/

Impact Analysis

If exploited, this vulnerability could allow an attacker to run malicious code on your system through a compromised Chrome extension. However, the attacker would need you to install the extension first, and the code runs in a sandbox, limiting its impact.

Compliance Impact

This vulnerability could potentially lead to unauthorized code execution, which may result in data breaches or unauthorized access to sensitive information. Such incidents could violate compliance requirements under GDPR (data protection) and HIPAA (health information privacy) if personal or health data is exposed.

Mitigation Strategies

Immediately update Google Chrome to version 151.0.7922.72 or later. Disable or remove any untrusted or unnecessary extensions. Avoid installing extensions from untrusted sources.

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