.rb files

AI Code Security Scanner for Ruby

Ruby on Rails applications are common targets for AI code generation, especially for CRUD operations and API endpoints. AI assistants frequently generate ActiveRecord queries using string interpolation instead of parameterized placeholders, include hardcoded API tokens in config/initializers, and use legacy OpenSSL ciphers. Rails' cryptographic foundations — including RSA for encrypted credentials — are quantum-vulnerable and need proactive migration planning.

Top vulnerabilities AI tools generate in Ruby code

1

SQL injection via string interpolation

Frequently generated by AI assistants writing Ruby code

2

eval() usage

Frequently generated by AI assistants writing Ruby code

3

hardcoded API tokens

Frequently generated by AI assistants writing Ruby code

4

OpenSSL legacy ciphers

Frequently generated by AI assistants writing Ruby code

5

weak session secrets

Frequently generated by AI assistants writing Ruby code

What CodeShield detects in Ruby files

CodeShield performs deep static analysis on .rb files to detect OWASP Top 10 vulnerabilities, exposed secrets, quantum-vulnerable cryptography, and insecure coding patterns specific to the Ruby ecosystem.

String interpolation in ActiveRecord where() clauses

ActiveRecord find_by_sql with interpolated strings

eval() and send() with user-controlled input

Hardcoded API tokens in initializers and configs

OpenSSL::Cipher::DES and legacy cipher usage

OpenSSL::PKey::RSA key generation (quantum-vulnerable)

OpenSSL::PKey::EC key generation (quantum-vulnerable)

Digest::MD5 and Digest::SHA1 usage

Weak secret_key_base in Rails credentials

YAML.load() without safe_load

AI tools that generate Ruby code

The following AI coding assistants actively generate Ruby code and are known to introduce the vulnerability patterns listed above:

CopilotCursor

These tools produce correct code in most cases, but studies show that up to 45% of AI-generated code contains at least one security vulnerability. CodeShield catches what code review misses.

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