Address Bar Spoof Risk; Missing Fullscreen Notification via Select Element

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-94181
StatePUBLISHED
AssignerBCNY
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-23 19:19:48 UTC
Updated2026-09-23 20:17:23 UTC
DescriptionAn 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.

Risk And Classification

Primary CVSS: v3.1 7.4 HIGH from 59469e6c-7ea7-446f-8e43-06aa32c115e8

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N

Problem Types: CWE-451 | CWE-451 CWE-451 User Interface (UI) Misrepresentation of Critical Information

VersionSourceTypeScoreSeverityVector
3.159469e6c-7ea7-446f-8e43-06aa32c115e8Secondary7.4HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N
3.1CNACVSS7.4HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
None
Integrity
High
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA The Browser Company Of New York Arc affected 1.159.0 semver MacOS

References

ReferenceSourceLinkTags
hackerone.com/reports/3711701 59469e6c-7ea7-446f-8e43-06aa32c115e8 hackerone.com
arc.net/security/bulletins 59469e6c-7ea7-446f-8e43-06aa32c115e8 arc.net
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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