CVE-2026-3691 OpenClaw Client PKCE验证器信息泄露漏洞

import requests # Proof of Concept (PoC) for CVE-2026-3691 # Description: This script demonstrates how sensitive information (PKCE verifier) # might be exposed in the URL query string during the OAuth flow. # An attacker sniffing the network or analyzing logs could capture this. def simulate_oauth_redirect(): target_url = "https://example.com/oauth/authorize" # Hypothetical vulnerable parameters based on the description # The 'verifier' parameter should not be exposed here. params = { "client_id": "openclaw_client", "response_type": "code", "redirect_uri": "https://example.com/callback", "scope": "read write", "state": "random_state_value", "code_challenge": "derived_from_verifier", "code_verifier": "SENSITIVE_VERIFIER_EXPOSED_HERE" # Vulnerability: Sensitive data in URL } print(f"[*] Simulating OAuth Authorization Request...") print(f"[*] Vulnerable URL: {target_url}?{requests.compat.urlencode(params)}") print("[!] The 'code_verifier' is exposed in the query string and can be logged or intercepted.") if __name__ == "__main__": simulate_oauth_redirect()