Mozilla Foundation Security Advisory 2026-49
Security Vulnerabilities fixed in Firefox for iOS 151.0
- Announced
- May 19, 2026
- Impact
- high
- Products
- Firefox for iOS
- Fixed in
-
- Firefox for iOS 151
#CVE-2026-8706: Sensitive user data could be leaked to other applications through Reader mode
- Reporter
- Muneaki Nishimura
- Impact
- high
Description
Firefox for iOS hosted Reader mode on an unauthenticated local web server, allowing another application on the same device to request arbitrary URLs and receive the response rendered with the signed-in user's cookies.