CVE-2025-10859

Data stored in cookies for non-HTML content while browsing Incognito could be viewed after closing private tabs

CVSS 4 MEDIUMEPSS 0.1%CWE-359

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.

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Produtos afetados

Mozilla · Firefox for iOS

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Referências

https://bugzilla.mozilla.org/show_bug.cgi?id=1684624 https://www.mozilla.org/security/advisories/mfsa2025-79/