CVE-2026-94181
Received Received - Intake

Address Bar Spoofing in Arc Browser

Publication date: 2026-09-23

Last updated on: 2026-09-23

Assigner: BCNY

Description
An address bar spoofing issue in affected versions of Arc could allow an attacker to spoof the browser address bar via a <select> element that triggers requestFullscreen without displaying the fullscreen notification.

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Meta Information

Published
2026-09-23
Last Modified
2026-09-23
Generated
2026-09-24
AI Q&A
2026-09-23
EPSS Evaluated
N/A
NVD
CVE-2026-94181
EUVD
EUVD-2026-85565

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
arc arc *

Helpful Resources

Exploitability

CWE
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KEV
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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.

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Executive Summary

This vulnerability is an address bar spoofing issue in Arc browser. It allows an attacker to trick users by displaying a fake URL in the address bar using a <select> element that triggers fullscreen mode without showing the fullscreen notification.

Impact Analysis

This could lead to phishing attacks where users believe they are on a legitimate website but are actually on a malicious one. It may trick users into entering sensitive information or downloading malware.

Mitigation Strategies

Update Arc browser to the latest version to patch the address bar spoofing issue. Avoid clicking suspicious links or granting fullscreen permissions to untrusted websites.

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