---
id: CVE-2026-120930
title: >-
  Incorrect authorization in Blink in Google Chrome prior to 156.0.8078.47
  allowed a remote attacker to bypass web origin policy via a crafted HTML page
summary: >-
  Incorrect authorization in Blink in Google Chrome prior to 156.0.8078.47
  allowed a remote attacker to bypass web origin policy via a crafted HTML page.
  (Chromium security severity: High)
severity: medium
cvss: 5.4
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N'
cvssSource: adp
cwe:
  - CWE-863
vendor: Google
product: Chrome
affected:
  - Chrome >= 156.0.8078.47 < 156.0.8078.47
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-11-04T15:17:18.558978Z'
published: '2026-11-03'
updated: '2026-11-04'
sourceUpdated: '2026-11-04T15:17:21.456Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-120930'
references:
  - url: >-
      https://chromereleases.googleblog.com/2026/10/stable-channel-update-for-desktop_02018666648.html
  - url: 'https://issues.chromium.org/issues/515948871'
tags:
  - cve.org
epss: 0.00177
epssPercentile: 0.07354
ingestedAt: '2026-11-05T21:36:00.405Z'
---

## Overview

Incorrect authorization in Blink in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to bypass web origin policy via a crafted HTML page. (Chromium security severity: High)

## Affected

- `Chrome >= 156.0.8078.47 < 156.0.8078.47`

## Remediation

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