rust-security-checklist

name	rust-security-checklist
description	Use before merging security-relevant Rust changes. Catches common local-service security regressions.

rust-security-checklist Skill

Use this skill before merging security-relevant Rust changes.

Goal

Catch common local-service security regressions early.

Checklist

1. Input and size limits

• Are request/response/body sizes bounded?
• Are parsing paths resistant to oversized input?

2. Network trust boundaries

• Are remote response sources validated (address/port where required)?
• Are timeouts and retry limits explicit?

3. Resource exhaustion

• Is task/thread concurrency bounded?
• Are unbounded queues/spawns avoided?

4. File and key safety

• Are private keys/certs written with restrictive permissions where supported?
• Are secret file paths stable and predictable under sudo?

5. Command execution safety

• Avoid sh -c with interpolated strings.
• Prefer direct Command APIs and explicit args.

6. Logging hygiene

• No secrets in logs.
• Errors are specific but not sensitive.

Required Validation

cargo run -p xtask -- fmt-check
cargo test -q
cargo check --workspace

Reporting Template

• Threat addressed:
• Change summary:
• Residual risk:
• Follow-up (if any):