---
id: "CVE-2026-121228"
kind: "vulnerability"
aliases: ["CVE-2026-121228"]
title: "Chrome: V8 type confusion lets a crafted web page run code"
severity: "high"
cvss: null
epss: null
exploited: false
status: "open"
category: "other"
products: []
ecosystems: []
tags: ["browsers", "chrome", "chromium", "other", "v8"]
not_affected_if: ["chrome-updated", "non-chromium-browser"]
published_at: "2026-11-03T21:17:32+00:00"
first_seen_at: "2026-11-03T21:19:28+00:00"
updated_at: "2026-11-03T21:21:21+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-121228", "first_seen_at": "2026-11-03T21:19:28+00:00"}]
---

# Chrome: V8 type confusion lets a crafted web page run code

A type confusion bug in V8, the JavaScript engine in Google Chrome, lets a remote attacker run arbitrary code inside the browser sandbox by getting the victim to open a crafted HTML page. Chromium rates it High severity.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the Chrome version under Chrome menu > Help > About Google Chrome, or run `chrome://version` in the address bar.
- Compare the installed version against `157.0.8103.38`; anything older is in the affected range.

## Fix

- Google Chrome: update to `157.0.8103.38` or later.

## Timeline

- 2026-11-03T21:19:28+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-121228

## From the sources

Type confusion 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: High)

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