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HighVulnerabilityCVE-2026-113271updated 27 Oct 2026, 03:00 UTC

Google Chrome: browser flaw in Accessibility lets a crafted web page run code

A specially built web page could make Chrome misuse memory, letting an attacker run code inside the browser's protective sandbox. Updating Chrome closes the hole.

Fix availableOfficial, 3 sources
SeverityHighCVSS 8.8 of 10
Being exploited?UnclearNo reports either way yet
Fix available?YesChrome 156.0.8078.47 or later (desktop); LTS-150 version 150.0.7871.287 or later (ChromeOS) · since 25 Oct 2026
How sure is this?Official, 3 sourcesBacked by an official source

How the attack works simplified

  1. 1Attacker builds pageCrafted HTML page with malicious payload
  2. 2Victim opens pageUser visits the page in Chrome
  3. 3Accessibility bug triggersUse-after-free corrupts memory
  4. 4Code runs in sandboxAttacker executes arbitrary code
  5. ResultAttacker runs code inside Chrome's sandbox

What happened

A use-after-free memory bug in Chrome's Accessibility component allows a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page.

Why it is dangerous: Anyone who visits a malicious or compromised web page in an unpatched Chrome browser could be exposed, especially on desktops running Windows, Mac or Linux.

Are you affected?

You are affected if you run Google Chrome versions prior to 156.0.8078.47 on Windows, Mac or Linux, or ChromeOS LTS-150 builds prior to 150.0.7871.287.

Google Chrome (desktop) prior to 156.0.8078.47 (Linux) / 156.0.8078.47/.48 (Windows/Mac); Chrome LTS-150 for ChromeOS prior to 150.0.7871.287

What to do

  1. Update Google Chrome to version 156.0.8078.47 or later (Windows, Mac, Linux)
  2. On ChromeOS LTS devices, update to version 150.0.7871.287 or later
  3. Restart the browser after updating so the fix takes effect

Timeline

  1. 20 Oct 2026, 20:09 UTC
    Publicly disclosed
  2. 20 Oct 2026, 20:09 UTC
    Reported by Chrome Releases · Chrome Releases
  3. 20 Oct 2026, 22:19 UTC
    Reported by NVD · NVD
  4. 27 Oct 2026, 03:00 UTC
    Google Chrome reported on it · Google Chrome

Sources 3 reports, oldest first

Official vendor, government CERT or advisory database

Technical details

ID
CVE-2026-113271
CVSS
8.8 / 10
EPSS
0.5% chance of exploitation within 30 days
Disclosed
20 Oct 2026, 20:09 UTC
On Zero Radar
before the radar started
Last change
27 Oct 2026, 03:00 UTC

The plain-language parts and the attack diagram were written by an AI model (anthropic/claude-haiku-5.5) from the sources above. Facts like versions, exploitation and dates come from the sources themselves. How Zero Radar works

Google Chrome: browser flaw in Accessibility lets a crafted web page run code · Zero Radar