CFRipper review

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

CFRipper is an open-source Python library and command-line security analyzer for AWS CloudFormation templates. It is aimed at teams and engineers who want to inspect infrastructure definitions for security and compliance issues while retaining control over how checks run and how results are consumed. The scope is specific: CFRipper focuses on CloudFormation rather than serving as a general-purpose infrastructure security platform.

Its main strength is customization. Users can analyze one or more template files in a single command, choose text or JSON output, and optionally resolve parameters during analysis. Configurable rule files and rule filters let teams shape the checks they apply, while custom compliance plugins extend the analyzer beyond its built-in coverage. The published capabilities include checks for IAM permissions, wildcard principals, access policies, networking, encryption, exposed passwords, credentials, public access, and cross-account trust. As open-source software, CFRipper is presented without paid plan tiers, making its value centered on the library, CLI, and extensibility rather than packaged service features.

CFRipper fits organizations whose infrastructure is defined in CloudFormation and whose priority is adaptable, code-oriented analysis. Its narrow scope is also the key limitation: teams working across Terraform or Kubernetes need a different tool for those definitions. The product is better suited to users comfortable incorporating a Python library or command-line analyzer into their workflows than to buyers seeking a broader platform experience. Choose CFRipper for custom CloudFormation compliance rules and focused AWS template checks; choose an alternative when multi-framework analysis or a wider integration layer is central to the requirement.

CFRipper pros and cons

• Where it wins
  • Configurable rules, filters, and custom compliance plugins
  • Analyzes multiple CloudFormation files in one command
  • Supports text or JSON results with optional parameter resolution
• Where it doesn't
  • Limited to AWS CloudFormation analysis
  • No Terraform or Kubernetes analysis
  • No broader platform or integration coverage

CFRipper fact sheet, pricing and score →

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Last updated 7 Oct 2026 · How we research and update