PT-2025-39982
CVE-2025-10859
·
Published
2025-09-30
·
Updated
2025-09-30
Description by
CVSS 3.1
4.0
MediumMetricsAV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Name of the Vulnerable Software and Affected Versions
Firefox for iOS versions prior to 143.1
Description
A flaw existed in how Firefox for iOS handled cookie storage for non-HTML temporary documents. This resulted in incorrect sharing of cookie storage between non-HTML temporary documents and normal browsing content. Consequently, information from private tabs could potentially leave Incognito mode, even after all tabs were closed.
Recommendations
Update to Firefox for iOS version 143.1 or later.
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