# NousResearch/hermes-agent · Blocking credential env vars from leaking to subprocesses

## Open now

- Nothing open on GitHub.

Multiple fixes and hardening efforts to prevent API keys and cloud provider credentials (AWS, Bedrock, Hermes) from being passed through to subprocesses via env_passthrough. Covers credential blocklist gaps across different auth types and config paths.

## TL;DR

- 7 member(s): 0 open issue(s), 2 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 #34498. Verify it addresses your case.
- **Recommended:** read PR #34498 (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-34498`. 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evidence (`STRUCTURAL_PARTIAL`): some members are connected by structural evidence (shared changed files, or a closing/superseded reference); the rest are joined by an automated relevance judgement over their text.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 `0.26`: 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

- #30103: security: env_passthrough could allow malicious skills to leak API keys to subprocesses
- #32314: \[Bug\]: auth_type="aws_sdk" never feeds into subprocess credential blocklist; AWS env vars leak to terminal/execute_code

## Prior & competing PRs

- **#34498: fix(security): strip Bedrock inference bearer token from subprocess env (#32314)**. merged to main · fix tier `verified`
  - maintainer direction: category `merged`; implication `superseded`
  - files: `tests/tools/test_local_env_blocklist.py`, `tools/environments/local.py`
- **#32319: fix(security): include AWS credential vars in bedrock subprocess blocklist (#32314)**. closed without merge
  - maintainer direction: category `superseded_by_pr`; implication `superseded`; refs `#34498`, `#32314`
- **#32374: fix(bedrock): register AWS credential env vars in subprocess credential blocklist**. closed without merge
  - maintainer direction: category `superseded_by_pr`; implication `superseded`; refs `#34498`, `#32314`
- **#32402: fix(security): strip AWS credential env vars from subprocesses for bedrock provider (#32314)**. closed without merge
  - maintainer direction: category `superseded_by_pr`; implication `superseded`; refs `#34498`, `#6032`
- **#34387: fix(security): block AWS SDK creds from subprocess env**. closed without merge
  - maintainer direction: category `merged_via`; implication `superseded`; refs `95b5b7240`, `6bebab476`, `#34498`, `#32314`

## Fix status

- Merged to main in PR #34498 (cited above). No release data is tracked. Verify downstream.
- Fix last verified (merged) `2026-05-29`.
- Subsystem: `agent/secret_sources`