---
id: CVE-2026-121031
title: >-
  Missing authorization in PDF in Google Chrome prior to 157.0.8103.38 allowed a
  remote attacker to bypass web origin policy into a privileged page via a
  crafted Chrome extension
summary: >-
  Missing authorization in PDF in Google Chrome prior to 157.0.8103.38 allowed a
  remote attacker to bypass web origin policy into a privileged page via a
  crafted Chrome extension. (Chromium security severity: Medium)
severity: none
cwe:
  - CWE-862
vendor: Google
product: Chrome
affected:
  - Chrome >= 157.0.8103.38 < 157.0.8103.38
published: '2026-11-03'
updated: '2026-11-03'
sourceUpdated: '2026-11-03T20:42:40.140Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-121031'
references:
  - url: >-
      https://chromereleases.googleblog.com/2026/11/stable-channel-update-for-desktop.html
  - url: 'https://issues.chromium.org/issues/497950736'
tags:
  - cve.org
epss: 0.0022
epssPercentile: 0.12669
ingestedAt: '2026-11-05T20:33:06.457Z'
---

## Overview

Missing authorization in PDF in Google Chrome prior to 157.0.8103.38 allowed a remote attacker to bypass web origin policy into a privileged page via a crafted Chrome extension. (Chromium security severity: Medium)

## Affected

- `Chrome >= 157.0.8103.38 < 157.0.8103.38`

## Remediation

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