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We are aware of the recently disclosed PHP2Shell vulnerabilities (CVE-2026-109618 and CVE-2026-109619) and can confirm Filestack is not impacted by these vulnerabilities.

Content Ingestion Network

The Content Ingestion Network (CIN) is a set of Filestack upload servers in several AWS regions. Each upload goes to the server nearest the user.

How It Works

As soon as a file reaches the nearest upload server, Filestack creates its URL and the URL can be used. The file then moves to its final storage, either Filestack storage or your own.

Upload Status

Request the file metadata with upload_status=true to see where the file is:

Status Values

  • Started: the file is uploading to the nearest server
  • In Transit: the file is on the nearest server and can be used, but has not reached final storage
  • Complete: the file is in its final storage

Setup

The CIN can be turned on for an application without other settings. If the application stores files in your own Amazon S3 bucket, the bucket needs extra configuration.

Documentation

Read the Filestack documentation page for this term.

Open the documentation