Address Bar Spoof Risk; Missing Fullscreen Notification via Select Element (CVE-2026-94181) | HOL Guard CVE

High · CVSS 7.4CVE-2026-94181

Address Bar Spoof Risk; Missing Fullscreen Notification via Select Element

Answer in brief

CVE-2026-94181 records a High severity (CVSS 7.4) vulnerability in Address Bar Spoof Risk; Missing Fullscreen Notification via Select Element. The current sources do not mark it as known exploited. The current feed maps The Browser Company of New York/Arc (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 23, 2026Updated Sep 23, 2026Source checked Sep 23, 2026First seen by HOL Sep 23, 2026Material review Sep 23, 2026

Upstream Advisory

Key facts

Risk: High · CVSS 7.4
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

CVSS is 7.4. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps The Browser Company of New York/Arc (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
The Browser Company of New York/Arcgeneric	>=0 <1.159.0	1.159.0

Recommended response

Check inventory. Check lockfiles and deployed manifests for The Browser Company of New York/Arc.
Review the reported fix. Update The Browser Company of New York/Arc to 1.159.0 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 23, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 23, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 23, 2026

Sources and claim methodology

Upstream source 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.

Quoted source text, attributed separately from HOL analysis.