# NousResearch/hermes-agent · A2A no-token mode accepting foreign Host or browser requests

## Open now

- Nothing open on GitHub.

These members concern the A2A listener in no-token mode, covering one bug report that it answers requests addressed to any hostname and two fix proposals that would refuse non-loopback Host headers (and, in one, browser-originated requests). Titles alone do not show whether any fix was merged or what the final behavior is.

## TL;DR

- 3 member(s): 0 open issue(s), 1 closed issue(s), 0 open PR(s), 1 merged PR(s), 1 PR(s) closed without merging.
- A fix was merged to main in PR #145310. Verify it addresses your case.
- **Recommended:** read PR #145310 (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-145310`. 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evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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 `0.67`: 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

- #126203: \[Bug\]: A2A listener in no-token mode answers requests addressed to any hostname

## Prior & competing PRs

- **#145310: fix(a2a): refuse browser-originated and foreign-Host requests in no-token mode**. merged to main · fix tier `verified`
  - maintainer direction: category `merged`
  - files: `plugins/platforms/a2a/README.md`, `plugins/platforms/a2a/adapter.py`, `plugins/platforms/a2a/security.py`, `tests/plugins/test_a2a_no_token_guards.py`, `tests/plugins/test_a2a_plugin.py`, `website/docs/user-guide/messaging/a2a.md`
- **#126205: fix(a2a): refuse a non-loopback Host in no-token mode**. closed without merge
  - maintainer direction: category `superseded_by_pr`; implication `superseded`; refs `#145310`

## Fix status

- Merged to main in PR #145310 (cited above). No release data is tracked. Verify downstream.
- Fix last verified (merged) `2026-10-27`.
- Subsystem: `acp`