# NousResearch/hermes-agent · SimpleX allowlist bypass via display name collision

## Open now

- 1 issue, 1 PR open on GitHub.
- #44730: \[Security\] Hermes SimpleX gateway allowlist authorization bypass via colliding contact display name
- PR #44741: fix(security): remove mutable display-name from SimpleX allowlist check

A security vulnerability where the SimpleX gateway allowlist authorization can be bypassed by using a colliding contact display name. Members include the vulnerability reports and a related fix removing mutable display-name from the allowlist check.

## TL;DR

- 4 member(s): 1 open issue(s), 1 closed issue(s), 1 open PR(s), 1 merged PR(s), 0 PR(s) closed without merging.
- A fix was merged to main in PR #125034. Verify it addresses your case.
- **Recommended:** read PR #125034 (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: `partially_resolved` · deciding PR(s): `pr-125034`. This is distinct from the fix status above. Weigh it yourself.

## How this cluster was grouped

- Link evidence (`STRUCTURAL_PARTIAL`): some members are connected by structural evidence (shared changed files, or a closing/superseded reference); the rest are joined by an automated relevance judgement over their text.
- Members outside that structural core may belong to a different underlying problem.
- Pairwise link density `0.39`: 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.

## Open related issues

- #44730: \[Security\] Hermes SimpleX gateway allowlist authorization bypass via colliding contact display name

## Closed / duplicate issues

- #44729: \[Security\] Hermes SimpleX sender allowlist can be bypassed via colliding display name on upstream main

## Prior & competing PRs

- **#125034: fix(simplex): authorize by contactId only, not the sender's display name**. merged to main · fix tier `verified`
  - maintainer direction: category `merged`
  - files: `gateway/authz_mixin.py`, `plugins/platforms/simplex/adapter.py`, `tests/gateway/test_simplex_plugin.py`, `tests/gateway/test_unauthorized_dm_behavior.py`, `website/docs/user-guide/messaging/simplex.md`
- **#44741: fix(security): remove mutable display-name from SimpleX allowlist check**. open
  - maintainer direction: category `uncategorized`; implication `needs_llm`
  - files: `gateway/authz_mixin.py`, `plugins/platforms/simplex/adapter.py`, `tests/gateway/test_simplex_plugin.py`, `tests/gateway/test_unauthorized_dm_behavior.py`

## Fix status

- Merged to main in PR #125034 (cited above). No release data is tracked. Verify downstream.
- Fix last verified (merged) `2026-09-27`.
- Subsystem: `gateway`