---
id: CVE-2026-19166
title: >-
  Use after free in Web Authentication in Google Chrome prior to 151.0.7922.109
  allowed a remote attacker to potentially perform a sandbox escape via a
  crafted HTML page
summary: >-
  Use after free in Web Authentication in Google Chrome prior to 151.0.7922.109
  allowed a remote attacker to potentially perform a sandbox escape via a
  crafted HTML page. (Chromium security severity: High)
severity: critical
cvss: 9.6
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H'
cwe:
  - CWE-416
vendor: google
product: chrome
affected:
  - chrome < 151.0.7922.109
patched:
  - chrome 151.0.7922.109
published: '2026-08-06'
updated: '2026-08-08'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-19166'
references:
  - url: >-
      https://chromereleases.googleblog.com/2026/08/stable-channel-update-for-desktop_01193673229.html
    label: chrome-cve-admin@google.com
  - url: 'https://issues.chromium.org/issues/536584251'
    label: chrome-cve-admin@google.com
tags:
  - nvd
epss: 0.00424
epssPercentile: 0.36328
ingestedAt: '2026-08-08T21:30:14.501Z'
---

## Overview

Use after free in Web Authentication in Google Chrome prior to 151.0.7922.109 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: High)

## Affected

- `chrome < 151.0.7922.109`

## Remediation

Upgrade past the affected range:

- `chrome 151.0.7922.109`