Omnibox Spoofing via Insufficient Policy Enforcement in Chrome Renderer

Publication date: 2026-04-08

Last updated on: 2026-04-14

Assigner: Chrome

Description

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 spoof the contents of the Omnibox (URL bar) via a crafted HTML page. (Chromium security severity: Medium)

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-04-08

Last Modified

2026-04-14

Generated

2026-07-06

AI Q&A

2026-04-09

EPSS Evaluated

2026-07-05

NVD

CVE-2026-5880

EUVD

EUVD-2026-20687

Affected Vendors & Products

Vendor	Product	Version / Range
google	chrome	to 147.0.7727.55 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-451	The user interface (UI) does not properly represent critical information to the user, allowing the information - or its source - to be obscured or spoofed. This is often a component in phishing attacks.

Attack-Flow Graph

Executive Summary

This vulnerability is an insufficient policy enforcement issue in the browser UI of Google Chrome versions prior to 147.0.7727.55. It allows a remote attacker who has already compromised the renderer process to spoof the contents of the Omnibox, which is the URL bar, by using a specially crafted HTML page.

Impact Analysis

The vulnerability can impact users by enabling attackers to spoof the URL displayed in the browser's Omnibox. This can mislead users into believing they are visiting a legitimate website when they are not, potentially facilitating phishing attacks or other forms of social engineering.

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