# NousResearch/hermes-agent · Group chat impersonation and control frame security fixes

## Open now

- Nothing open on GitHub.

These items concern security vulnerabilities in group chat where malicious agent output or member control frames could impersonate user messages or manipulate session behavior. The work involves patches to the gateway and desktop components to neutralize these attack vectors.

## 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 #112260. Verify it addresses your case.
- **Recommended:** read PR #112260 (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-112260`. 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evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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

- #111564: Group chat: agent output containing the literal \[OUT-OF-BAND USER MESSAGE\] marker is treated as a genuine user message by every participant

## Prior & competing PRs

- **#112260: fix(gateway,desktop): group-chat members can no longer impersonate the user's out-of-band messages (#111564, salvage #111571, #111576)**. merged to main · fix tier `verified`
  - maintainer direction: category `merged`
  - files: `agent/prompt_builder.py`, `apps/desktop/src/plugins/hermes-bots/group-chat.test.ts`, `apps/desktop/src/plugins/hermes-bots/group-round-prompt.ts`, `gateway/hosted_room_discussion.py`, `tests/gateway/test_hosted_room_discussion.py`
- **#111571: fix(gateway): neutralize member control frames**. closed without merge
  - maintainer direction: category `merged_via`; implication `superseded`; refs `837acdc91d`, `#112260`

## Fix status

- Merged to main in PR #112260 (cited above). No release data is tracked. Verify downstream.
- Fix last verified (merged) `2026-09-16`.