CVE-2026-124907 · Other
NO FIX YET · SEE WHAT TO DO
A use-after-free bug in Firefox's WebGL canvas graphics component allows privilege escalation and escape from the browser sandbox. Fixed in Firefox 160 and Firefox ESR 153.7.
first public Nov 10, 2026 · 1 source
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Anyone running a Firefox build older than 160 or Firefox ESR older than 153.7. Organizations running Firefox ESR on managed desktops are affected through the desktop fleet. Systems without Firefox installed are not affected.
Not affected if firefox-160-or-later, firefox-esr-153.7-or-later
Who cares browser, desktop, firefox
160 for Firefox and 153.7 for Firefox ESR.160153.7Privilege escalation, sandbox escape due to use-after-free in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 160 and Firefox ESR 153.7.
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