CVE-2026-117866

CVE-2026-117866

Privilege escalation due to use-after-free in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.

CVE-2026-117866

Privilege escalation due to use-after-free in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.

CVE-2026-117866

Privilege escalation due to use-after-free in the Graphics: Canvas2D c ...

GHSA-qjjg-jwpj-6849

Privilege escalation due to use-after-free in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, and Firefox ESR 153.6.

ELSA-2026-94405

ELSA-2026-94405: firefox security update (IMPORTANT)