infospace-bench/infospaces/patterns-of-it-securita-architecture/artifacts/entities/pattern-secure-file-upload-pipeline.md

Pattern: Secure File Upload Pipeline

Status: seed Readiness target: RL3 production Primary owners: product repos, artifact-store, NetKingdom Genesis family: Application/API security

Problem

User-supplied files can carry malware, parser attacks, data leakage, and unsafe object-storage exposure.

Context

Use this pattern for tenant file uploads, artifact ingestion, document processing, media upload, and user-controlled object storage paths.

Forces

• Users need convenient uploads.
• Uploaded files should not be trusted until processed.
• Scanning, classification, and transformation may be asynchronous.
• Object access must remain tenant and authorization scoped.

Solution

Route uploads through a controlled pipeline: accept to quarantine, record metadata, scan/classify, transform if needed, promote to trusted storage, and serve through authorized access paths.

Verification

• Raw uploads land in quarantine or untrusted storage.
• Scanning and classification results are recorded before promotion.
• Access to uploaded objects uses tenant and object-level authorization.
• Malicious or unsupported files fail safely.

Related Patterns

• Object-Level Authorization Check.
• STS Credential Vending.
• Tenant Data Partitioning.
• Central Audit Ledger.