Spring Cloud Data Flow is a microservices-based Streaming and Batch data processing in Cloud Foundry and Kubernetes. The Skipper server has the ability to receive upload package requests. However, due to improper sanitization for upload path, a malicious user who has access to skipper server api can use a crafted upload request to write arbitrary file to any location on file system, may even compromises the server.
The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.