This is a test repository to experiment with GitHub's "privately reporting a security vulnerability" workflow, see https://docs.github.com/en/code-security/security-advisories/guidance-on-reporting-and-writing-information-about-vulnerabilities/privately-reporting-a-security-vulnerability
If or when security vulnerabilities or advisories appear against this specific repository, they are expected to be as a result of experimenting with this workflow and not be actual vulnerabilities.