Use after free in WebRTC in Google Chrome on Linux prior to 148.0.7778.216 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: High)
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* - NOT VULNERABLE
Google Chrome (Linux) < 148.0.7778.216
PoC / Exploit Code
⚠ For Security Research Only
The following code is for security research and authorized testing only.
python
<!--
PoC Concept for CVE-2026-9988 (WebRTC UAF)
This is a simplified demonstration of the trigger logic.
-->
<!DOCTYPE html>
<html>
<head>
<title>CVE-2026-9988 PoC</title>
</head>
<body>
<script>
// Step 1: Create a PeerConnection to setup WebRTC context
const pc = new RTCPeerConnection();
// Step 2: Add a track to create internal objects
const stream = navigator.mediaDevices.getUserMedia({video: true});
stream.then(s => {
const track = s.getVideoTracks()[0];
pc.addTrack(track, s);
// Step 3: Trigger the Use-After-Free condition
// (Simulated logic: remove track and attempt to access reference)
pc.removeTrack(track);
// The specific crash/exploit trigger would go here
// exploiting the dangling pointer in the internal WebRTC stack.
console.log("Triggering UAF...");
});
</script>
</body>
</html>