CVE-2026-124909 · Other
NO FIX YET · SEE WHAT TO DO
A flaw in the Private Browsing component of Firefox discloses information that should stay hidden. The sources do not say what data leaks or what an attacker must do to read it.
first public Nov 10, 2026 · 1 source
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Anyone running a Firefox release before 160 or a Firefox ESR release before 153.7 is exposed. The sources do not say what data is disclosed or whether any special setting or user action is needed.
Not affected if already-updated-firefox
Who cares desktop-browsers, firefox
firefox --version on the command line.160 and Firefox ESR 153.7.160153.7Information disclosure in the Private Browsing component. This vulnerability was fixed in Firefox 160 and Firefox ESR 153.7.
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