Skip to content

fix: preserve auth server path in OAuth metadata URL construction #521

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
wants to merge 2 commits into
base: main
Choose a base branch
from

Conversation

dankelleher
Copy link

Previously, the path was stripped when constructing the well-known OAuth metadata URL. Per RFC 8414 §3.1, the path must be preserved after the .well-known segment to support multitenant auth servers that encode tenant IDs in the path.

Fixes issue #520

  • Fix oauthAuthServerMetadataUrl to preserve path segments
  • Add comprehensive test coverage for the function

Motivation and Context

The current solution brings challenges for multitenant auth servers

How Has This Been Tested?

I tested a local deployment of the inspector with this change hacked in and it solved the issue.

Breaking Changes

No

Types of changes

  • Bug fix (non-breaking change which fixes an issue)
  • New feature (non-breaking change which adds functionality)
  • Breaking change (fix or feature that would cause existing functionality to change)
  • Documentation update

Checklist

  • I have read the MCP Documentation
  • My code follows the repository's style guidelines
  • New and existing tests pass locally
  • I have added appropriate error handling
  • I have added or updated documentation as needed

Additional context

Previously, the path was stripped when constructing the well-known OAuth
metadata URL. Per RFC 8414 §3.1, the path must be preserved after the
.well-known segment to support multitenant auth servers that encode
tenant IDs in the path.

- Fix oauthAuthServerMetadataUrl to preserve path segments
- Add comprehensive test coverage for the function
@dankelleher dankelleher force-pushed the fix/issue-520-oauth-authorization-server-path branch from 52c9668 to 846f67d Compare June 17, 2025 14:32
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
None yet
Projects
None yet
Development

Successfully merging this pull request may close these issues.

1 participant