Firefox iOS 155.0: Cross-Origin Popup Navigation Stall
CVE-2026-81267 Published on August 31, 2026
Stalled popup navigation could allow address bar origin spoofing in Firefox for iOS
A malicious webpage could stall a popup's cross-origin navigation after commit, causing the address bar to display the destination origin while continuing to render attacker-controlled content. This vulnerability was fixed in Firefox for iOS 155.0.
Vulnerability Analysis
CVE-2026-81267 can be exploited with network access, requires user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a small impact on confidentiality, a small impact on integrity, and a small impact on availability.
Weakness Type
User Interface (UI) Misrepresentation of Critical Information
The user interface (UI) does not properly represent critical information to the user, allowing the information - or its source - to be obscured or spoofed. This is often a component in phishing attacks.
Products Associated with CVE-2026-81267
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Affected Versions
Mozilla Firefox for iOS:- Version 155.0, <= * is unaffected.