---
id: CVE-2026-102309
title: >-
  Use after free in FullScreen in Google Chrome prior to 154.0.8037.92 allowed a
  remote attacker to execute arbitrary code outside the sandbox via a crafted
  HTML page
summary: >-
  Use after free in FullScreen in Google Chrome prior to 154.0.8037.92 allowed a
  remote attacker to execute arbitrary code outside the sandbox 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 < 154.0.8037.92
patched:
  - chrome 154.0.8037.92
published: '2026-09-29'
updated: '2026-09-30'
sourceUpdated: '2026-09-30T16:25:23.430'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-102309'
references:
  - url: >-
      https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_01807488085.html
    label: chrome-cve-admin@google.com
  - url: 'https://issues.chromium.org/issues/560867085'
    label: chrome-cve-admin@google.com
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-102309.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-102309'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-102309'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-102309'
tags:
  - nvd
  - cve.org
  - csaf
  - vex
  - red-hat
epss: 0.00317
epssPercentile: 0.24504
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-29T20:29:04.712904Z'
scores:
  nvd: 9.6
  vendor: 8.8
ingestedAt: '2026-09-29T20:46:06.435Z'
---

## Overview

Use after free in FullScreen in Google Chrome prior to 154.0.8037.92 allowed a remote attacker to execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: High)

## Affected

- `chrome < 154.0.8037.92`

## Remediation

Upgrade past the affected range:

- `chrome 154.0.8037.92`

## Vendor advisories

- **Red Hat VEX** · updated 2026-09-29 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-102309.json)