CVE-2026-121137

Awaiting Analysis Awaiting Analysis - Queue

Type Confusion in Google Chrome DevTools

Publication date: 2026-11-03

Last updated on: 2026-11-03

Assigner: Chrome

Description

Type confusion in DevTools in Google Chrome prior to 157.0.8103.38 allowed a remote attacker leveraging social engineering to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)

CVSS Scores

EPSS Scores

Probability:
Percentile:

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-2026-121137

EUVD

EUVD-2026-116427

Affected Vendors & Products

Vendor	Product	Version / Range
Google	Chrome	157.0.8103.38

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 Google Chrome's DevTools. It allows a remote attacker to execute arbitrary code within the browser's sandbox by tricking a user into visiting a specially crafted HTML page. The attacker exploits confusion in how the browser handles data types to run malicious code.

Detection Guidance

This vulnerability is specific to Google Chrome versions prior to 157.0.8103.38. To detect it, check your Chrome version by running chrome://version/ in the browser address bar. If your version is below 157.0.8103.38, the system is vulnerable.

Impact Analysis

If you use an affected version of Chrome, visiting a malicious website could allow an attacker to run arbitrary code on your system, potentially stealing data, installing malware, or taking control of your browser. The sandbox limits damage but does not fully prevent exploitation.

Mitigation Strategies

Update Google Chrome to version 157.0.8103.38 or later immediately. This can be done via the browser's built-in update mechanism or by downloading the latest version from Google's official site. Avoid visiting untrusted websites until the update is applied.

Hi! I’m here to help you understand CVE-2026-121137. Ask me anything about the vulnerability, its impact, or mitigation strategies.

0/70

EPSS Chart

Security Radar

News mentioning this vulnerability

Loading related security news...