CVE-2026-121048

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Race Condition in Google Chrome V8 Engine

Publication date: 2026-11-03

Last updated on: 2026-11-03

Assigner: Chrome

Description

Race condition in V8 in Google Chrome prior to 157.0.8103.38 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: Medium)

CVSS Scores

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Meta Information

Published

2026-11-03

Last Modified

2026-11-03

Generated

2026-11-04

AI Q&A

2026-11-04

EPSS Evaluated

N/A

NVD

CVE-2026-121048

EUVD

EUVD-2026-116296

Affected Vendors & Products

Vendor	Product	Version / Range
Google	Chrome	157.0.8103.38

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-367	The product checks the state of a resource before using that resource, but the resource's state can change between the check and the use in a way that invalidates the results of the check.

Attack-Flow Graph

Executive Summary

This vulnerability is a race condition in V8, the JavaScript engine used by Google Chrome. It allows a remote attacker to execute arbitrary code inside the browser's sandbox by tricking a user into visiting a specially crafted HTML page. The sandbox is meant to isolate malicious activity, but this flaw bypasses that protection.

Impact Analysis

If exploited, this vulnerability could allow an attacker to run malicious code on your device. This could lead to unauthorized access to sensitive data, installation of malware, or further compromise of your system. Users should update Chrome immediately to mitigate the risk.

Mitigation Strategies

Update Google Chrome to version 157.0.8103.38 or later to address the race condition in V8.

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