Medium severity4.0NVD Advisory· Published Sep 30, 2025· Updated Apr 13, 2026
CVE-2025-10859
CVE-2025-10859
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
4- Range: <143.1
- osv-coords2 versions
< 0+ 1 more
- (no CPE)range: < 0
- (no CPE)range: < 0
Patches
Vulnerability mechanics
References
2- www.mozilla.org/security/advisories/mfsa2025-79/nvdVendor Advisory
- bugzilla.mozilla.org/show_bug.cginvdIssue TrackingPermissions Required
News mentions
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