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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.

Intelligent Ingestion

Intelligent Ingestion (FII) is a Filestack upload option that changes the size of upload parts while a file is uploading, so large files finish on slow or unstable networks.

How It Works

A large file is uploaded in parts. With Intelligent Ingestion, a part that times out is split into smaller parts and sent again, down to a minimum part size. One slow part does not stop the whole upload.

Turning It On

  • Intelligent Ingestion is turned on for an application by the Filestack sales team
  • In the JavaScript SDK, set the intelligent upload option
  • The default maximum file size for Intelligent Ingestion uploads is 160 GB

Where It Helps

  • Mobile networks
  • Networks with limited or changing bandwidth
  • Very large files

Documentation

Read the Filestack documentation page for this term.

Open the documentation