CVE-2026-94181

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

23/09/2026

Last modified:

24/09/2026

Description

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

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N CVSS v3.1 Severity and Metrics:

Base Score: 7.40 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope (S): Changed
Confidentiality (C): None
Integrity (I): High
Availability (A): None

Base Score 3.x

7.40

Severity 3.x

HIGH

References to Advisories, Solutions, and Tools

https://arc.net/security/bulletins#cve-2026-94181-address-bar-spoof-risk-missing-fullscreen-notification-via-select-element
https://hackerone.com/reports/3711701