# NousResearch/hermes-agent · MCP OAuth RFC 9207 iss parameter handling fixes

## Open now

- Nothing open on GitHub.

Multiple fixes addressing the preservation and threading of the RFC 9207 'iss' parameter through MCP OAuth callback flows, prompted by failures with servers like Cloudflare and Resend.

## TL;DR

- 6 member(s): 0 open issue(s), 1 closed issue(s), 0 open PR(s), 1 merged PR(s), 4 PR(s) closed without merging.
- A fix was merged to main in PR #111628. Verify it addresses your case.
- **Recommended:** read PR #111628 (and any competing PRs below) before filing. Confirm the merged change covers your symptom.

## Maintainer resolution verdict

- Internal-tracker verdict over this cluster's issue members: `resolved` · deciding PR(s): `pr-111628`. This is distinct from the fix status above. Weigh it yourself.

## How this cluster was grouped

- Link evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.
- Pairwise link density `0.80`: the share of member pairs that carry a link, counting a structural link in full and a relevance-only link at 0.36. `1.00` means every pair is linked.

## Closed / duplicate issues

- #105895: \[Bug\]: Cloudflare MCP OAuth fails with "Authorization response missing iss parameter advertised by the authorization server"

## Prior & competing PRs

- **#111628: fix(mcp): MCP OAuth login works against RFC 9207 servers (Cloudflare, Resend) from the dashboard, Desktop and TUI (#105895, salvage #105610)**. merged to main · fix tier `verified`
  - maintainer direction: category `merged`; implication `superseded`
  - files: `apps/desktop/electron/mcp-oauth-callback-ipc.test.ts`, `apps/desktop/electron/mcp-oauth-callback-ipc.ts`, `apps/desktop/src/global.d.ts`, `apps/desktop/src/lib/mcp-dashboard-oauth.ts`, `apps/shared/src/gateway-contract.generated.ts`, `apps/shared/src/gateway-contract.openrpc.json`, `contributors/emails/[redacted:email]`, `contributors/emails/[redacted:email]`, `contributors/emails/[redacted:email]`, `hermes_cli/web_routers/mcp.py`, `tests/hermes_cli/test_mcp_dashboard_oauth.py`, `tests/tools/test_mcp_dashboard_oauth.py`, `tests/tui_gateway/test_mcp_oauth_client_callback.py`, `tools/mcp_dashboard_oauth.py`, `tui_gateway/contracts/tools_mcp_plugins.py`, `tui_gateway/mcp_oauth_sessions.py`, `tui_gateway/methods_tools.py`
- **#105610: fix(mcp): thread RFC 9207 iss through every OAuth callback relay**. closed without merge
  - maintainer direction: category `merged_via`; implication `superseded`; refs `#111628`, `#111628`
- **#105911: Fix/mcp oauth rfc9207 iss 105895**. closed without merge
  - maintainer direction: category `duplicate_of`; implication `duplicate`; refs `#105610`, `#105895`, `#92758`, `#88612`, `#105610`
- **#105912: fix(mcp): preserve RFC 9207 iss through dashboard OAuth callback (#105895)**. closed without merge
  - maintainer direction: category `duplicate_of`; implication `duplicate`; refs `#105610`, `#105895`, `#105610`
- **#106634: fix(mcp): preserve RFC 9207 iss parameter in dashboard and gateway OAuth callbacks**. closed without merge
  - maintainer direction: category `duplicate_of`; implication `duplicate`; refs `#105610`, `#105895`, `#105911`, `#105912`, `#105610`

## Fix status

- Merged to main in PR #111628 (cited above). No release data is tracked. Verify downstream.
- Fix last verified (merged) `2026-09-15`.