An MCP server for TrueNAS that lets users manage ZFS pools, datasets, shares, snapshots, VMs, alerts, and network configuration through natural language, using a single hierarchical tool exposing 278 actions.
Caution. Specific findings reduced this grade. They are listed on the page. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.
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maverick0628
Source: Glama
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Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.
@modelcontextprotocol/sdk has cross-client data leak via shared server/transport instance reuse
Anthropic's MCP TypeScript SDK has a ReDoS vulnerability
Model Context Protocol (MCP) TypeScript SDK does not enable DNS rebinding protection by default
ws: Memory exhaustion DoS from tiny fragments and data chunks
ws: Uninitialized memory disclosure
TRUENAS_API_KEYyes — Generate in TrueNAS: Credentials → API Keys → AddTRUENAS_HOSTTRUENAS_URLyes — TrueNAS host or URL. http:///https:// is rewritten to wss://; /api/current is appended if absentTRUENAS_VERIFY_SSLno true Set false to skip TLS verification (self-signed certs)Tool annotations
No tools have read-only/destructive annotations
Add readOnlyHint or destructiveHint annotations to every tool so hosts can warn users before invoking.
All four hints declared on every tool
279/279 tools missing one or more hints — truenas (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); alert_list (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); alert_dismiss (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +276 more. OpenAI's directory rejects tools where any of the four hints are missing or non-boolean.
For every tool, set all four hints (readOnlyHint, destructiveHint, idempotentHint, openWorldHint) to explicit true/false values that match the handler’s actual behaviour.
Tool inputs are validated
198/279 tool handlers declare input schemas (71%)
Declare an inputSchema with zod/joi/yup on every tool definition.
Tool handlers catch errors
Only 2/279 tool handlers wrap calls in try/catch (1%)
Wrap each tool handler body in try/catch and return a structured error response.
Tool test coverage
Only 0/279 tools referenced in tests (0%)
Write tests that reference each tool by name so every tool has at least one test.
Production dependencies are patched
0 critical, 4 high severity in production deps — @modelcontextprotocol/sdk@1.12.1 (high), @modelcontextprotocol/sdk@1.12.1 (high)
Run npm audit fix, or upgrade the affected packages to a non-vulnerable version.
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