# NousResearch/hermes-agent · null byte sanitization in terminal and cron tools

## Open now

- Nothing open on GitHub.

These issues address crashes or unsafe behavior caused by embedded null bytes, with fixes focusing on sanitizing input at ingestion rather than at each syscall boundary. The terminal tool and cron lifecycle guard are both affected.

## 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 #80258. Verify it addresses your case.
- **Recommended:** read PR #80258 (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: `unresolved`. 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evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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

- #79148: fix: terminal tool crashes with 'embedded null byte' when command references a binary via absolute path

## Prior & competing PRs

- **#80258: fix(cron): make the lifecycle guard total — sanitize at ingestion, not per-syscall**. merged to main · fix tier `verified`
  - maintainer direction: category `merged`
  - files: `cron/lifecycle_guard.py`, `cron/scheduler.py`, `tests/cron/test_cron_no_agent.py`, `tests/hermes_cli/test_gateway_restart_loop.py`, `tools/terminal_tool.py`
- **#79151: fix: terminal tool crashes with 'embedded null byte' when command references a binary via absolute path**. closed without merge
  - maintainer direction: category `superseded_by_pr`; implication `superseded`; refs `#80258`, `#76762`, `#77703`, `#77780`, `#78256`

## Fix status

- Merged to main in PR #80258 (cited above). No release data is tracked. Verify downstream.
- Fix last verified (merged) `2026-08-06`.
- Subsystem: `environments`