Bundler-audit

Bundler-audit
Name	Bundler-audit
Title	Bundler-audit
Developer	Daniel DeLeo; Yitzchak Shalom contributors
Latest release	0.8.0
Programming language	Ruby (programming language)
Platform	Cross-platform
License	MIT License

Bundler-audit

Bundler-audit is a security auditing tool for Ruby (programming language) projects that inspects Bundler dependency manifests and checks for known vulnerabilities, insecure versions, and unpatched advisories. It integrates with RubyGems, Gemfile.lock workflows and is used by organizations, open-source projects, and security teams to enforce dependency hygiene in continuous integration pipelines involving tools like Travis CI, Jenkins, and GitHub Actions. The project is associated with contributors from communities around GitHub, RubyGems.org, and security researchers who coordinate disclosure through entities such as CVE and the National Vulnerability Database.

Overview

Bundler-audit examines lockfiles created by Bundler and cross-references listed gems against a curated advisory collection sourced from public repositories and coordinated disclosure channels. It was created to augment ecosystem tooling around RubyGems.org and to provide a lightweight, command-line alternative to integrated solutions from vendors and projects such as Snyk, GitLab, and Dependabot. The tool is written in Ruby (programming language) and distributes as a gem, fitting into developer toolchains alongside package managers and build tools like Rake and Make (software).

Features and functionality

Bundler-audit provides several features for assessing and remediating vulnerable dependencies: it detects known advisories, flags insecure source references, and can suggest or enforce updates to affected gems. The scanner leverages advisory metadata for each vulnerability and reports affected versions, remediation suggestions, and advisory identifiers such as entries tracked by CVE and vendor advisories from repositories maintained by security teams and maintainers. It supports output suitable for automated parsing by CI systems including CircleCI, Azure DevOps, and Bitbucket Pipelines, enabling gates in pipelines used by organizations like Shopify, Basecamp, and Heroku. Additional functionality includes offline auditing using local advisory mirrors and integration hooks for tools like Brakeman and Bundler itself.

Usage and command examples

Typical usage invokes commands from a shell environment on systems running Unix-like OSes, macOS, or Windows environments via the Ruby runtime. Common commands include initializing the gem, updating the advisory database, and running audits against a project's lockfile. Example sequences mirror patterns used in CI setups for projects hosted on GitHub or mirrored on GitLab: - Install the gem with RubyGems.org tooling and run the audit against a checked-in lockfile. - Update the advisory database periodically and fail builds on detected advisories in Travis CI, GitHub Actions, or Jenkins. - Use output hooks to integrate with incident tracking systems such as JIRA, PagerDuty, or security dashboards maintained by teams at Mozilla or Canonical.

Vulnerability database and sources

Bundler-audit relies on an advisory collection derived from public security databases, community-maintained advisory repositories, and canonical vulnerability feeds. Sources commonly cross-referenced include entries from CVE, the National Vulnerability Database, advisories published on RubyGems.org, and curated lists maintained by security researchers and organizations. The project historically used a local database format that developers could update from mirror repositories hosted on GitHub and other code hosting platforms, enabling offline auditing for environments without direct internet access. Coordination with disclosure channels such as CERT/CC, vendor advisories from major maintainers, and community repositories ensures broader coverage of disclosed vulnerabilities.

Development and maintenance

Development of the tool has been driven by individual maintainers, contributors from the Ruby community, and security practitioners who submit patches and advisory updates via pull requests on GitHub. Maintenance responsibilities have included updating compatibility with new Bundler and Ruby (programming language) versions, addressing false positives reported by projects like Spree or Discourse, and improving integration with CI/CD platforms such as CircleCI and GitLab CI/CD. Governance has followed common open-source patterns with issue tracking, continuous integration testing, and community review processes similar to those used by projects under organizations like the Ruby Foundation and influential repositories on GitHub.

Adoption and impact

Bundler-audit influenced practices for dependency auditing in the Ruby ecosystem and informed feature development in platforms offering automated dependency management, including Dependabot in GitHub, enterprise security scanners from vendors such as Snyk and WhiteSource, and in-house security tooling at companies like Etsy and Shopify. Its lightweight, CLI-first approach made it suitable for inclusion in pre-commit hooks, automated pipelines, and developer workflows used by open-source projects like Rails, Sinatra, and Jekyll that rely on Bundler for dependency resolution. As a community tool, it contributed to raising awareness about supply-chain risks and encouraged adoption of coordinated disclosure practices across the broader software security community.

Category:Ruby (programming language) software