---
id: CVE-2026-91709
title: >-
  Type confusion in ServiceWorker in Google Chrome prior to 153.0.8010.47
  allowed a remote attacker to execute arbitrary code inside the sandbox via a
  crafted HTML page
summary: >-
  Type confusion in ServiceWorker in Google Chrome prior to 153.0.8010.47
  allowed a remote attacker to execute arbitrary code inside the sandbox via a
  crafted HTML page. (Chromium security severity: High)
severity: high
cvss: 8.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'
cwe:
  - CWE-843
vendor: google
product: chrome
affected:
  - chrome < 153.0.8010.47
patched:
  - chrome 153.0.8010.47
published: '2026-09-15'
updated: '2026-09-17'
sourceUpdated: '2026-09-17T13:37:24.113'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-91709'
references:
  - url: >-
      https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0541751186.html
    label: chrome-cve-admin@google.com
  - url: 'https://issues.chromium.org/issues/547815507'
    label: chrome-cve-admin@google.com
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-91709.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-91709'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-91709'
tags:
  - nvd
  - cve.org
  - csaf
  - vex
  - red-hat
epss: 0.00406
epssPercentile: 0.34585
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-16T00:00:00+00:00'
ingestedAt: '2026-09-15T21:44:50.638Z'
---

## Overview

Type confusion in ServiceWorker in Google Chrome prior to 153.0.8010.47 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)

## Affected

- `chrome < 153.0.8010.47`

## Remediation

Upgrade past the affected range:

- `chrome 153.0.8010.47`

## Vendor advisories

- **Red Hat VEX** · updated 2026-09-15 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-91709.json)