NousResearch/hermes-agent

Group chat impersonation and control frame security fixes

Cluster 111564. Data as of 2026-10-26 12:29 UTC

Nothing open on GitHub. Fix merged in #112260 on 16 Sep 2026. Check it covers your case.

open issues

open PRs

items grouped

Known?: Yes. 3 related items grouped here, 1 issue already closed.
Fix event: A fix was merged to main in PR #112260. Check it covers your case. No release data is tracked.
Tracker: The maintainers' tracker marks this resolved, deciding PR #112260. That is separate from the fix event.
Still open: Nothing open on GitHub.

Next step: read #112260, then check it covers your case.

Read #112260 Pick up a Lab task

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.

Open issues0

No open issues.

Open PRs0

No open pull requests.

Fixes on record

Merged to main. A stamp counts the issues a fix is linked to.

#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

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

1 PR closed without merging

From the close comments: merged via another change 1

#111571 fix(gateway): neutralize member control frames · merged via another change → 837acdc, #112260

Closed issues · 1

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

How this cluster was grouped

Link evidence (structural links throughout): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.
Pairwise link density 0.67: the share of item 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.

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At a glance

Merged PRs: #112260
Closed issues: 1
Attempts: 1 PR closed without merging
Fix link checked: 16 Sep 2026

For your agent

The same facts, typed.

cluster/111564.json
cluster/111564.md