MCP, MCP server
mcpview
MCP server framework and MCP Apps view toolkit for Deno and Node.
Compatibility: Not stated.
Grade C
One Medium finding. Read the report before installing.
Not a guarantee. A hygiene check of the source at the commit shown, not a security audit.
OBFUSCATION_ENCODED_BLOB
Why this grade
- OBFUSCATION_ENCODED_BLOB Medium
Contains a long base64 shaped string in a file that should be readable.
packages/server/src/testdata/stdio-e2e-silent.ts, line 1
/**
Any High, or two or more Medium findings, give D. One Medium gives C. Low findings or a security Note give B. Each code names a finding behind the letter.
Grades are a hygiene check of the source at the commit shown, on the date checked, not a security audit or a guarantee. The free directory grades are automated. Before release, a PlugVet engineer reviews every paid report and any grade we hold back, including all F grades, against the source code and the evidence we quote.
What was checked
Plain notes from the hygiene checks.
Permissions
Note
requests shell access. The manifest names this permission.
PERMISSION_SHELL_DECLARED
packages/bridge/scripts/build-npm.ts, line 129
const command = new Deno.Command("node", {
packages/compose/src/host/serve.ts, line 113
const process = new Deno.Command(cmd[0], {
packages/compose/src/runtime/cluster.ts, line 164
const command = new Deno.Command(transport.command, {
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packages/compose/src/runtime/host-dashboard.ts, line 736
const process = new Deno.Command(command[0], {
packages/server/src/stdio-e2e_test.ts, line 74
new Deno.Command(Deno.execPath(), {
packages/server/src/stdio-e2e_test.ts, line 382
child = new Deno.Command(Deno.execPath(), {
packages/server/src/stdio-mrtr-e2e_test.ts, line 47
const child = new Deno.Command(Deno.execPath(), {
packages/server/src/stdio-mrtr-e2e_test.ts, line 133
const child = new Deno.Command(Deno.execPath(), {
Install and update
Pass
No install-time script found, and dependencies are pinned or absent.
Network
Concern
can reach a host that is not written as a fixed address.
NETWORK_NO_FIXED_HOST
packages/bridge/skills/references/api.md, line 155
fetchFn?: typeof fetch; // Custom fetch (testing/custom runtimes)
packages/bridge/src/client/bridge.js, line 441
ws = new WebSocket(WS_URL);
packages/bridge/src/resource-server/server.ts, line 767
const content = await (await fetch(bridgeJsPath)).text();
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packages/compose/src/host/renderer/js/event-bus.ts, line 412
const response = await fetch(config.rpcEndpoint, {
packages/compose/src/runtime/cluster.ts, line 826
response = await fetch(this.endpoint, {
packages/compose/src/runtime/host-dashboard_test.ts, line 47
const response = await fetch(`${dashboardUrl}${route}`, {
packages/compose/src/runtime/host-dashboard_test.ts, line 75
const dashboard = await fetch(handle.url);
packages/compose/src/runtime/host-dashboard_test.ts, line 90
const appResource = await fetch(iframeMatch[1]);
packages/server/api-surface_test.ts, line 160
const call = await fetch(`http://localhost:${port}/mcp`, {
packages/server/api-surface_test.ts, line 187
const stream = await fetch(`http://localhost:${port}/mcp`, {
packages/server/scripts/smoke-node.mjs, line 199
const res = await fetch("http://127.0.0.1:38988/mcp", {
packages/server/scripts/smoke-node.mjs, line 245
fetch("http://127.0.0.1:38988/mcp", {
packages/server/scripts/smoke-node.mjs, line 287
const resource = await fetch("http://127.0.0.1:38988/mcp", {
packages/server/scripts/smoke-node.mjs, line 327
const list = await fetch("http://127.0.0.1:38988/mcp", {
packages/server/scripts/smoke-node.mjs, line 359
const legacy = await fetch("http://127.0.0.1:38988/mcp", {
packages/server/src/e2e-sdk-features_test.ts, line 140
const res = await fetch(`http://localhost:${port}/mcp`, {
Secrets
Concern
reads a credential or environment file.
SECRETS_PATH_DOTENV
packages/compose/stubs/demo.ts, line 48
if (env) manifest.transport.env = { ...manifest.transport.env, ...env };
packages/server/src/inspector/launcher.ts, line 64
...options?.env,
packages/server/src/inspector/launcher.ts, line 85
env: { ...env, ...inspectorEnv },
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.gitignore, line 1
packages/bridge/.env
packages/compose/SPEC.md, line 212
- [ ] Local credential storage (`.env` or keychain, per template)
packages/compose/docs/USER-FLOW.md, line 45
Credentials are stored locally (`.env` or keychain). Never sent to the cloud.
packages/compose/src/deploy/contract.md, line 26
- Env vars are prompted from user or read from local `.env`, never hardcoded.
Agent instructions
Pass
No instruction to ignore earlier instructions or to hide a step.
Obfuscation
Concern
contains an encoded blob in a file that should be readable.
OBFUSCATION_ENCODED_BLOB
packages/server/src/testdata/stdio-e2e-silent.ts, line 1
/**
packages/view-components/src/fonts-data.ts, line 18
src: url(data:font/woff2;base64,d09GMgABAAAAAHpsABIAAAABMqgAAHoCAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAGoE4G4caHIGacgZgP1NUQVSBICceAIUiL0wRCAqB3DiBrC4LhhYAMIGcXgE2AiQDjBoEIAWHRgejDFtJFnGB
packages/view-components/src/fonts-data.ts, line 29
src: url(data:font/woff2;base64,d09GMgABAAAAAFcwABMAAAAAzqQAAFbDAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAGoMkG/p0HIlOP0hWQVKDKQZgP1NUQVRYJx4AhFovRBEICoGBMOZ3C4RIADDoWAE2AiQDiQwEIAWEbgeLChvX
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packages/view-components/src/fonts-data.ts, line 40
src: url(data:font/woff2;base64,d09GMgABAAAAAMVcABMAAAABl+gAAMTrAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAGpJiG4KsVByQGj9IVkFSiUkGYD9TVEFUgTgnLgCFNi9+EQgKgaZogYVUC4U6ADCB92ABNgIkA4pwBCAFiXYH
Licence
Pass
A licence file is present (LICENSE).
Maintainer activity
Pass
The latest commit is within the last 365 days.
Note
Hygiene check of commit 5dbf0cb62ae9. requests shell access. The manifest names this permission. can reach a host that is not written as a fixed address. reads a credential or environment file. contains an encoded blob in a file that should be readable.
Date and source
Date checked:
github.com
Commit graded: 5dbf0cb62ae905062b519ae7a602df8ce5607dfa
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