Integer overflow in ANGLE in Google Chrome prior to 148.0.7778.96 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: Medium)
cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:* - NOT VULNERABLE
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* - NOT VULNERABLE
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* - NOT VULNERABLE
Google Chrome < 148.0.7778.96
PoC / Exploit Code
⚠ For Security Research Only
The following code is for security research and authorized testing only.
python
<!--
Conceptual PoC for CVE-2026-7942: ANGLE Integer Overflow
This code demonstrates the setup of a WebGL context, which is the typical vector for ANGLE vulnerabilities.
Real exploitation requires specific crafted WebGL shaders or buffers.
-->
<!DOCTYPE html>
<html>
<head>
<title>CVE-2026-7942 PoC</title>
</head>
<body>
<h1>Testing ANGLE Integer Overflow</h1>
<canvas id="glCanvas" width="640" height="480"></canvas>
<script>
const canvas = document.getElementById('glCanvas');
// Initialize WebGL context (triggers ANGLE)
const gl = canvas.getContext('webgl');
if (!gl) {
console.error('WebGL not supported');
} else {
console.log('WebGL context created');
// Placeholder for specific malformed WebGL operations
// that would trigger the integer overflow.
// e.g., creating large buffers or specific shader compilations.
try {
// Example operation that might stress the component
const buffer = gl.createBuffer();
gl.bindBuffer(gl.ARRAY_BUFFER, buffer);
// Malicious size input would go here
gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(1024), gl.STATIC_DRAW);
} catch (e) {
console.log('Exception caught: ' + e);
}
}
</script>
</body>
</html>