D
Caution
54/100
1 day ago

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.

How we verified

⚡ Live Monitored: not connected

Verified is a snapshot. Live keeps it current, and builds your track record.

⚡ Connect GitHub → continuous verification on every pushwhy connect →

Who stands behind it

fkguo

Source: github_code

Is this your MCP?

Claim it to get a verified publisher badge, a free copy of our full audit findings, and direct contact for any high-priority issues we find. Or connect your repo for our deepest verification, Live Monitored: read-only, revoke anytime. What we access →

Install from

M8ven verifies MCPs across every public registry — install directly from whichever one you prefer.

// key findings
🚨
Known vulnerabilities in dependencies: 2 critical, 8 high
Affects packages this MCP installs at runtime. Upgrade or remove the affected dependency.
// known CVEs in dependencies2 critical8 high1 medium3 low

Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.

criticaltar@7.5.2GHSA-23hp-3jrh-7fpw

node-tar: Decompression/parse DoS via unlimited input

criticalvitest@4.0.16GHSA-5xrq-8626-4rwp

When Vitest UI server is listening, arbitrary file can be read and executed

high@modelcontextprotocol/sdk@1.25.2GHSA-345p-7cg4-v4c7

@modelcontextprotocol/sdk has cross-client data leak via shared server/transport instance reuse

hightar@7.5.2GHSA-34x7-hfp2-rc4v

node-tar Vulnerable to Arbitrary File Creation/Overwrite via Hardlink Path Traversal

hightar@7.5.2GHSA-83g3-92jg-28cx

Arbitrary File Read/Write via Hardlink Target Escape Through Symlink Chain in node-tar Extraction

Depend on this server? Get alerted when its CVEs change.Watch this server free →
// environment variables
To run this server yourself, you supply these values. They go in your own MCP client configuration and stay on your machine. The secret label means the value is sensitive, not that the server mishandles it.
configHEP_TOOL_MODEThe live tool inventory is code-owned and mode-filtered by (standard, full). Exact counts live in the generated category and status docs, not in this README — see the drift lock below.
// quality suggestions

License file

No license file

Add a LICENSE file (MIT, Apache-2.0, etc.).

Production dependencies are patched

1 critical, 8 high severity in production deps — tar@7.5.2 (critical), @modelcontextprotocol/sdk@1.25.2 (high)

Run npm audit fix, or upgrade the affected packages to a non-vulnerable version.

Dev dependencies

1 critical/high in dev-only deps (does not ship to users)

Upgrade dev dependencies when convenient.

Domain consistency

npm scope @nullius doesn't match GitHub owner fkguo

Use the same org name across GitHub, npm, and your homepage so users can verify the publisher.

Claim the listing to review these findings one by one and send us a correction where you disagree, straight to the team. Claiming also means we tell you when the grade moves, and reach you first if we find anything urgent.

// full audit trail
The findings above are the summary. The full trail, every check we ran, each deduction, the network hosts observed and the dependency advisories, goes to verified publishers, along with an alert whenever a new one lands. Verified publishers can also review each finding and dispute it in one click. Publisher corrections have sharpened several of our checks this month, because the maintainer knows the codebase better than any scanner.
// improvement guidance — verified publishers only
We have 4 concrete improvements we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.
// embed badge in your README
[![M8ven Verified](https://m8ven.ai/badge/mcp/fkguo-nullius-1rzlat?variant=verified)](https://m8ven.ai/mcp/fkguo-nullius-1rzlat)
Shows verification status without the grade. Want the grade badge instead? Remove ?variant=verified from the URL.
commit: b48e565908de5a7c83ea8ea425b076e41b877a16
code hash: 4a11c819c70ae9d87d2adfa6003694dbbe27407d97c8be13a89e4b21b900e2c6
verified: 8/21/2026, 12:38:46 AM
view raw JSON →
Check MCPs from inside your assistant
Tool Check · MCP

Vetting this one by hand? Tool Check is an MCP that scores other MCPs. Add it once and ask Claude, ChatGPT, or any MCP client to grade a server, surface CVEs, check the publisher, and suggest safer alternatives — before you install.

https://m8ven.ai/api/mcp/tool-check
check_toolsearch_toolscompare_toolsrecommend_alternativescheck_publisherreport_concern
How to add it →Free · no account needed · works in any MCP client