GraphQL-Cop

What GraphQL-Cop is

GraphQL-Cop is a lightweight Python utility for checking GraphQL APIs for common security issues. The project describes it as suitable for security auditing and lightweight CI/CD checks. Its listed tests cover alias and batch query overloading, CSRF risks, information leaks, duplicated fields, denial-of-service risks, and circular introspection queries. When it identifies vulnerabilities, it can provide cURL commands to reproduce them. Results can be written as JSON and can include those reproduction commands.

Users can supply request headers, exclude tests, force a scan, configure a proxy, or provide a custom wordlist of endpoint paths. When the target URL does not specify a GraphQL path, the tool tries a series of common paths. It can be run from Python or built and run as a Docker container. Its listed requirements are Python 3 and the Requests library.

GraphQL-Cop is available for Linux, macOS, Windows, and self-hosted use, and its repository includes an MIT License. The README provides command-line help and troubleshooting guidance for Docker file and dependency issues. The project states that it does not cover API discovery, authentication or authorization testing, input-validation testing, or business-logic testing.

Who it suits

GraphQL-Cop suits developers and security practitioners auditing GraphQL APIs, including teams adding lightweight checks to CI/CD. It is a fit for users comfortable running a Python utility or Docker container and who need findings with reproducible cURL commands.

Getting started

1. Visit the project at https://github.com/dolevf/graphql-cop.
2. Install Python 3 and the Requests library, or use the documented Docker build and run route.
3. Provide a target GraphQL API URL; if it omits a GraphQL path, the utility tries common paths.
4. Configure request headers, excluded tests, a proxy, or a custom endpoint wordlist as needed.
5. Run the scan and use JSON output or cURL commands to review and reproduce findings.

Verdict

Choose GraphQL-Cop for lightweight GraphQL security checks that can run in CI/CD and produce reproducible findings. Look elsewhere if your review needs API discovery, authentication or authorization checks, input-validation testing, or business-logic testing.