---
id: CVE-2026-5891
title: >-
  Insufficient policy enforcement in browser UI in Google Chrome prior to
  147.0.7727.55 allowed a remote attacker who had compromised the renderer
  process to perform UI spoofing via a crafted HTML page
summary: >-
  Insufficient policy enforcement in browser UI in Google Chrome prior to
  147.0.7727.55 allowed a remote attacker who had compromised the renderer
  process to perform UI spoofing via a crafted HTML page. (Chromium security
  severity: Medium)
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L'
cwe:
  - CWE-451
vendor: google
product: chrome
affected:
  - chrome < 147.0.7727.55
patched:
  - chrome 147.0.7727.55
published: '2026-04-08'
updated: '2026-07-24'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-5891'
references:
  - url: >-
      https://chromereleases.googleblog.com/2026/04/stable-channel-update-for-desktop.html
    label: chrome-cve-admin@google.com
  - url: 'https://issues.chromium.org/issues/487471101'
    label: chrome-cve-admin@google.com
tags:
  - nvd
epss: 0.00206
epssPercentile: 0.10962
ingestedAt: '2026-07-24T08:22:37.060Z'
---

## Overview

Insufficient policy enforcement in browser UI in Google Chrome prior to 147.0.7727.55 allowed a remote attacker who had compromised the renderer process to perform UI spoofing via a crafted HTML page. (Chromium security severity: Medium)

## Affected

- `chrome < 147.0.7727.55`

## Remediation

Upgrade past the affected range:

- `chrome 147.0.7727.55`