labbench

Item: labbench
Rating: 52
Author: M8ven

Enables Claude Code to browse coursework, manage user workspaces, run sandboxed tests, post hints, and assign new projects in LabBench.

→ yunxingl/mcp_remote_sandbox · listed on glama

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// key findings

🚨

Known vulnerabilities in dependencies: 2 critical, 4 high

Affects packages this MCP installs at runtime. Upgrade or remove the affected dependency.

🔐

You'll be asked for 3 credentials: ANTHROPIC_API_KEY, MCP_TOKEN, MODAL_TOKEN_SECRET

These are read from process.env at runtime. Make sure you trust where they’ll be sent.

// known CVEs in dependencies2 critical4 high1 medium2 low

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

criticalnext-auth@5.0.0-beta.29GHSA-7rqj-j65f-68wh

Auth.js: Email normalizer validates the address before Unicode normalization, allowing a homoglyph @ bypass

criticalnext-auth@5.0.0-beta.29GHSA-8fpg-xm3f-6cx3

Auth.js: Configuration errors can cause existence-based auth checks to fail open (auth object populated with an error)

high@modelcontextprotocol/sdk@1.20.0GHSA-345p-7cg4-v4c7

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

high@modelcontextprotocol/sdk@1.20.0GHSA-8r9q-7v3j-jr4g

Anthropic's MCP TypeScript SDK has a ReDoS vulnerability

high@modelcontextprotocol/sdk@1.20.0GHSA-w48q-cv73-mx4w

Model Context Protocol (MCP) TypeScript SDK does not enable DNS rebinding protection by default

Depend on this server? Get alerted when its CVEs change.Watch this server free →

// required environment variables

This server reads these from process.env. You'll be asked to provide them before it can run.

configALLOWED_EMAILS— Google login, allowlist-only — only emails in can sign in.

🔐 secretANTHROPIC_API_KEY— 4. Anthropic — enables the in-site tutor chat.

configANTHROPIC_MODEL

configLOCAL_RUNNER_DIR

🔐 secretMCP_TOKEN— 6. — openssl rand -hex 32; required for the MCP endpoint.

configMODAL_APP_NAME

configMODAL_TOKEN_ID— 5. Modal — /MODAL_TOKEN_SECRET

🔐 secretMODAL_TOKEN_SECRET— 5. Modal — MODAL_TOKEN_ID/

configRUNNER_BACKEND— auto, problems run on Modal when it's configured and

// full audit trail

The full breakdown of what we checked, the deductions that landed, the network hosts, the dependency advisories, and concrete fix guidance is available to verified publishers.

// 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 Score](https://m8ven.ai/badge/mcp/yunxingl-mcp-remote-sandbox-56bbml)](https://m8ven.ai/mcp/yunxingl-mcp-remote-sandbox-56bbml)

commit: 456ffeed99faf56fbab01c8aa12b697b8c2b4cbe

code hash: 347938a4874f24aef437cf17b93a017b29048fb5ae4787f4b911b473e6e84b22

verified: 7/31/2026, 9:17:14 AM

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