Mozilla Foundation Security Advisory 2026-12
Security Vulnerabilities fixed in Firefox for iOS 147.4
- Announced
- February 20, 2026
- Impact
- high
- Products
- Firefox for iOS
- Fixed in
-
- Firefox for iOS 147.4
#CVE-2026-2634: Spoofed web content presented under trusted domains using scripted navigation on Firefox iOS
- Reporter
- Renwa
- Impact
- high
Description
Malicious scripts could cause desynchronization between the address bar and web content before a response is received in Firefox iOS, allowing attacker-controlled pages to be presented under spoofed domains.