CVE-2026-92052

A privilege escalation vulnerability exists in the Graphics: CanvasWebGL component of Firefox due to uninitialized memory, potentially allowing attackers to execute arbitrary code with elevated privileges. Users of affected Firefox versions should prioritize updating to Firefox 156 or Firefox ESR 153.3 to mitigate the risk of exploitation. This issue is particularly relevant for organizations relying on Firefox for web applications or services that may be targeted.