---
id: CVE-2026-106271
title: >-
  Missing authorization in Workers in Google Chrome prior to 155.0.8059.39
  allowed a remote attacker who had compromised the renderer process to bypass
  site isolation via a crafted PDF file
summary: >-
  Missing authorization in Workers in Google Chrome prior to 155.0.8059.39
  allowed a remote attacker who had compromised the renderer process to bypass
  site isolation via a crafted PDF file. (Chromium security severity: Medium)
severity: none
cwe:
  - CWE-862
vendor: Google
product: Chrome
affected:
  - Chrome >= 155.0.8059.39 < 155.0.8059.39
published: '2026-10-06'
updated: '2026-10-06'
sourceUpdated: '2026-10-06T19:57:00.457'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-106271'
references:
  - url: >-
      https://chromereleases.googleblog.com/2026/10/stable-channel-update-for-desktop_086471744.html
    label: chrome-cve-admin@google.com
  - url: 'https://issues.chromium.org/issues/553118313'
    label: chrome-cve-admin@google.com
tags:
  - nvd
  - cve.org
ingestedAt: '2026-10-06T19:13:33.886Z'
---

## Overview

Missing authorization in Workers in Google Chrome prior to 155.0.8059.39 allowed a remote attacker who had compromised the renderer process to bypass site isolation via a crafted PDF file. (Chromium security severity: Medium)

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.