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Semgrep cheat sheets serve as security reference guides with programming language–specific examples. They are designed to help you mitigate common risks in popular libraries and frameworks while ensuring secure practices in your source code. See Supported Languages for the complete set of languages and package managers supported by Semgrep.
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Go

Cheat sheets for the Go ecosystem including net/http.
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Java

Cheat sheets for the Java ecosystem including JSP.
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JavaScript

Cheat sheets for the JavaScript ecosystem including Express.
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Python

Cheat sheets for the Python ecosystem including Django and Flask.
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Ruby

Cheat sheets for the Ruby ecosystem including Rails.

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Additional Resources

  • Vulnerabilities: Descriptions for different classes of vulnerabilities you may encounter.
  • Secure Coding Blog: Recent blog posts from the Semgrep team about secure coding practices.