liushuyu/rustsec

If you build software in Rust, you probably rely on dozens or even hundreds of open-source packages from the Rust community. The RustSec project helps you check whether any of those packages have known security vulnerabilities, so you can fix them before they become a problem. The main tool in this repository is cargo-audit. It reads your project's dependency list, a file called Cargo.lock that Rust automatically generates to track exactly which versions of each package you're using, and compares it against a separate, constantly updated database of known security issues. If any of your dependencies match an advisory in that database, the tool flags them so you can upgrade to a safer version. Beyond the command-line audit tool, the repository also houses several supporting pieces. There's a library for programmatically reading and parsing Cargo.lock files, a tool for scoring the severity of vulnerabilities using a standard industry rubric, a registry of which platforms Rust supports, and an administrative tool for linting and generating the project's website. These are the building blocks that the project itself uses, but they're also available for other developers to use in their own tools. This is most useful for Rust developers, engineering leads, or anyone responsible for maintaining a Rust codebase. For example, if you're shipping a web service and want to make sure a newly disclosed bug in one of your dependencies hasn't left your application exposed, you'd run the audit tool to catch it. Teams often run it as part of their routine checks, locally before a release, or automatically in a continuous integration pipeline, so problems are caught early rather than after deployment. The project is notably modular: instead of one monolithic tool, it's split into focused, reusable components. The README doesn't go into detail on tradeoffs or design decisions beyond what each piece does, but the structure suggests the team values building blocks that can serve a range of security-related needs in the Rust ecosystem.