---
id: "CVE-2026-126921"
page: "https://infrastack.ai/live/CVE-2026-126921"
kind: "vulnerability"
aliases: ["CVE-2026-126921"]
title: "Google Chrome: accessibility use-after-free lets a crafted page run code"
severity: "high"
cvss: null
epss: null
exploited: false
status: "open"
category: "other"
products: []
ecosystems: []
tags: ["browser", "chrome", "endpoints", "other"]
not_affected_if: ["chrome-updated"]
published_at: "2026-11-11T23:17:22+00:00"
first_seen_at: "2026-11-11T23:29:41+00:00"
updated_at: "2026-11-11T23:31:27+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-126921", "first_seen_at": "2026-11-11T23:29:41+00:00"}]
exploit_sources: []
---

# Google Chrome: accessibility use-after-free lets a crafted page run code

Link for people: https://infrastack.ai/live/CVE-2026-126921 (this .md is for agents)

A use-after-free bug in Chrome's Accessibility component lets a remote attacker run arbitrary code inside the browser sandbox through a crafted HTML page. The attack needs the victim to open the malicious page.

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

## How to check

- Check the installed Chrome version in the browser's About page or with `google-chrome --version`; versions before `157.0.8103.78` are affected.

## Fix

- Google Chrome: update to `157.0.8103.78` or later.

## Timeline

- 2026-11-11T23:29:41+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-126921

## From the sources

Use after free in Accessibility in Google Chrome prior to 157.0.8103.78 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)

---

_Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai_