This is a starter kit. Only the current main branch receives security fixes from upstream. Forks, downstream projects, and tagged releases are owned by their maintainers — pull fixes in on your own cadence.

Do not open a public issue. Use GitHub's private vulnerability reporting:

https://github.com/fullstackhero/dotnet-starter-kit/security/advisories/new

Please include:

• Affected component (module, file, endpoint)
• Reproduction steps and any required configuration
• Impact (what an attacker can achieve)
• Proof-of-concept if you have one

• Acknowledgement within 72 hours.
• Triage decision within 7 days.
• Coordinated disclosure window of ~90 days from triage, longer for changes that need careful migration paths.

Fixes ship as a patched commit on main plus a GitHub Security Advisory. Reporters are credited with permission.

In scope: src/ (BuildingBlocks, Modules, Host), default appsettings.*.json, the FullStackHero.CLI, and the clients/ apps.

Out of scope: third-party NuGet/npm packages (report upstream), the docs site, and issues in downstream forks (contact that fork's maintainer).

This kit ships with development-friendly defaults. Before deploying a fork, rotate JWT signing keys and seeded passwords, lock CORS, set strong Hangfire dashboard credentials, and persist DataProtection keys to a shared store for multi-instance hosting.