Fetch-url-http-3a-2f-2fmetadata.google.internal-2fcomputemetadata-2fv1-2finstance-2fservice Accounts-2f -

http://google.internal endpoint allows Google Cloud resources to securely retrieve identity and authorization information without embedding secrets. To prevent SSRF attacks, requests must include the Metadata-Flavor: Google

While powerful, this endpoint is a high-value target for attackers: View and query VM metadata | Compute Engine http://google

import requests def get_service_account_token(): url = "http://metadata.google.internal/computeMetadata/v1/instance/service-accounts/default/token" headers = "Metadata-Flavor": "Google" try: response = requests.get(url, headers=headers) response.raise_for_status() return response.json()['access_token'] except Exception as e: return f"Error fetching metadata: e" Use code with caution. Copied to clipboard This URL does not exist on your laptop

Are you running locally?

This URL does not exist on your laptop. If you are developing locally, you need to set the GOOGLE_APPLICATION_CREDENTIALS environment variable to point to a service account JSON key file, or use gcloud auth application-default login . Using curl (Linux/VM):

Developers typically use these fetches when they need to authenticate with other Google APIs (like Cloud Storage or BigQuery) without hardcoding secret keys. Using curl (Linux/VM):