This policy covers the genesismesh-sdk-dotnet NuGet package. It does not cover the Genesis Mesh Network Authority server or the Genesis Mesh protocol itself — those are tracked in the main repository.

Vulnerabilities in scope:

• Incorrect Ed25519 signature construction or verification
• CanonicalJson producing incorrect output that could allow signature bypass
• Admin header building that leaks the signing key or produces forgeable headers
• Error handling that leaks internal server details to callers
• Dependency vulnerabilities in the published package

Out of scope (report to the main repo instead):

• NA server-side vulnerabilities
• Protocol design issues
• Issues requiring physical access to the signing key material

Do not open a public GitHub issue for security vulnerabilities.

Use GitHub's private vulnerability reporting:

1. Go to the Security tab
2. Click Report a vulnerability
3. Fill in the report form

You will receive a response within 72 hours. We aim to release a fix within 14 days for critical issues and 30 days for moderate issues.

Please include:

• A description of the vulnerability and its impact
• Steps to reproduce or a minimal code sample
• The package version affected
• Any proposed fix if you have one

We follow coordinated disclosure. We ask that you keep the vulnerability private until a fix is released. We will credit you in the release notes unless you prefer to remain anonymous.