The system is live, and every request passes through your microservices access proxy. You trust it to enforce rules, route traffic, and keep attackers out. But do you know exactly what runs inside it?
A Software Bill of Materials (SBOM) answers that. For a microservices access proxy, the SBOM is a complete inventory of every library, dependency, and component—both open source and proprietary—that makes up the service. It tells you what you have, where it comes from, and what it depends on. Without it, you are blind to vulnerabilities and licensing risks hidden deep in your stack.
Microservices are built from small, independent parts. Each proxy layer may use dozens of third-party modules: HTTP routers, authentication handlers, cryptographic libraries, logging frameworks. Those modules in turn pull in their own dependencies. A single outdated package can expose the entire access proxy to known CVEs. An up-to-date SBOM lets you detect this before it is exploited.
An SBOM for a microservices access proxy is more than a static list. Integrated into your CI/CD pipeline, it updates with each build, maps component versions, and flags changes. Link it with vulnerability scanners to catch problems immediately. Link it with licensing tools to ensure compliance. For regulated industries, this transparency is now a requirement.