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kastelldev/kastell

v2.2.0 Security

This release includes 3 security fixes for security teams reviewing exposed deployments.

Published 2mo Server & OS Management
✓ No known CVEs patched
Read the diff → Tool health → What is this tool? →
This release patches 3 known CVEs

Topics

automation cli coolify devops digitalocean docker
+10 more
dokploy hetzner linode mcp security-audit self-hosted server-management typescript vps vultr

Affected surfaces

auth breaking_upgrade

Summary

AI summary

Added a plugin ecosystem for third‑party audit check plugins.

Full changelog

Kastell v2.2.0 — Plugin Ecosystem + Deferred Completion

Added

  • Plugin Ecosystem — third-party audit check plugins via kastell-plugin-* npm packages
    • kastell plugin install/remove/list/validate CLI commands
    • server_plugin MCP tool (list + validate actions)
    • Plugin SDK types, manifest validation with Zod + semver compatibility
    • Plugin loader with collision detection, cache, and startup integration
    • Example plugins: kastell-plugin-wordpress (3 checks), kastell-plugin-auditor (2 checks)
  • --include-forbidden flag — run FORBIDDEN tier fixes with per-fix confirmation
  • --auto-fix --schedule pipeline — doctor + fix on a cron schedule (DOC-04)
  • Fix session logging — per-command execution log (AH-03)
  • Doctor fix history merge — results persisted to fix-history.json (DOC-02)
  • FORBIDDEN rawCommand handler — shows commands with confirmation (DOC-03)

Changed

  • CHECK_IDS constants — all 481 audit check IDs migrated to typed const object
  • extractReason helper — replaces 18 inline patterns
  • compliance/mapper.ts split — category-based sub-modules (DEF-06)
  • buildFirewallSetupCommand merge (DEF-07)

Security

  • Plugin loader path traversal guard (SEC-08)
  • Snapshot path traversal guard (SEC-09)
  • server_lock MCP destructiveHint (SEC-10)
  • CI expression injection fix (SEC-07)

Stats

  • 10401 tests (267 suites), coverage 96.33%
  • 6 phases (P124-P129), 100 files changed

Full changelog: https://github.com/kastelldev/kastell/blob/main/CHANGELOG.md

Security Fixes

  • Plugin loader path traversal guard (SEC-08)
  • Snapshot path traversal guard (SEC-09)
  • CI expression injection fix (SEC-07)
View diff on GitHub

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About kastelldev/kastell

Server security auditing and hardening toolkit. 413 security checks across 29 categories (SSH, Firewall, Docker, TLS, HTTP Headers), CIS/PCI-DSS/HIPAA compliance mapping, 19-step production hardening, fleet management, and forensic evidence collection. Supports Hetzner, DigitalOcean, Vultr, and Linode. 13 MCP tools.

All releases →

Related context

Earlier breaking changes

  • v2.3.0 `server_secure firewall-status` MCP output: `rules` now an object array instead of string array.
  • v2.3.0 `server_fix` MCP output shape changed: non-apply actions no longer carry `dryRun` field.
  • v2.3.0 `server_fix` MCP input shape changed: `dryRun` removed, replaced by `mode: 'dry-run' | 'live'`.
  • v2.3.0 Plugin SDK audit checks now require apiVersion: "2" and object-shaped checkCommand.

Beta — feedback welcome: [email protected]