CVE-2026-109434

Fenrir Sleipnir Browser for Android before 3.9.0 contains a UI spoofing vulnerability that allows remote attackers to impersonate the browser's trusted address bar by entering fullscreen mode via the Fullscreen API without displaying a persistent notification or trusted-origin indicator. Attacker...

CVE-2026-109434

Fenrir Sleipnir Browser for Android before version 3.9.0 is vulnerable to a UI spoofing flaw. By utilizing the Fullscreen API to enter fullscreen mode, remote attackers can bypass persistent notifications or trusted-origin indicators to impersonate the browser's trusted address bar. This allows t...

CVE-2026-109434 Sleipnir Browser < 3.9.0 Fullscreen Address Bar Spoofing

Fenrir Sleipnir Browser for Android before 3.9.0 contains a UI spoofing vulnerability that allows remote attackers to impersonate the browser's trusted address bar by entering fullscreen mode via the Fullscreen API without displaying a persistent notification or trusted-origin indicator. Attacker...

EUVD-2026-104568

Fenrir Sleipnir Browser for Android before 3.9.0 contains a UI spoofing vulnerability that allows remote attackers to impersonate the browser's trusted address bar by entering fullscreen mode via the Fullscreen API without displaying a persistent notification or trusted-origin indicator. Attacker...