4.0
Medium
CVE-2025-10859 Cookie storage for non-HTML temporary documents was being shared incorrectly with normal browsing content, allowing…
Description
Cookie storage for non-HTML temporary documents was being shared incorrectly with normal browsing content, allowing information from private tabs to escape Incognito mode even after the user closed all tabs. This vulnerability was fixed in Firefox for iOS 143.1.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Firefox for iOS 143.1 | earliest → < 143.1 | 143.1 |
Other CVEs of Firefox for iOS
The 60 CVEs of Firefox for iOS →
CVE-2026-116631
A malicious web page could open a tel link in a window that was showing a different website, causing the phone-call…
5.4
Medium
CVE-2026-116632
A malicious web page could insert arbitrary text into the FaceTime call prompt shown by iOS, potentialy allowing it to…
5.4
Medium
CVE-2026-103417
Firefox for iOS could autofill saved credentials into a new page if cross-origin navigation occurred while the…
5.5
Medium
CVE-2026-103418
Firefox for iOS directly interpolated the page’s HTML language attribute into translation JavaScript, allowing…
8.8
High