CVE-2026-94181 Address Bar Spoof Risk; Missing Fullscreen Notification via Select Element
Attackers can spoof the browser address bar using a select element to hide fullscreen notifications, misleading users about the current site.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-94181?
CVE-2026-94181 is a high-severity vulnerability in The Browser Company of New York Arc, published on 23 Sep 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-451
Which versions are affected by CVE-2026-94181?
How do I fix CVE-2026-94181?
No fix has been published for CVE-2026-94181 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-94181 being exploited?
There is no known exploitation of CVE-2026-94181 in the wild and no public exploit code.
Sources
Also known as GHSA-g53h-c489-2f5m.