Grades are a hygiene check, not a security guarantee.

MCP, MCP server

Airtable User MCP

Airtable User MCP, an MCP server listed in the PlugVet directory.

Compatibility: Not stated.

Grade D

Two or more Medium findings, or a High finding. Only try it in a sandbox.

Graded by PlugVetRubric v2

Not a guarantee. A hygiene check of the source at the commit shown, not a security audit.

Rescanned at commit 1156119825ae, unchanged since the check below.

Pattern found, check before installing

The checks matched a pattern that needs a closer look. It does not mean the code is harmful. Read the quoted lines below.

  • NETWORK_HOST_FROM_INPUT High

    host from input plus a credential path in operative code

NETWORK_HOST_FROM_INPUT SECRETS_PATH_CREDENTIAL OBFUSCATION_ENCODED_BLOB OBFUSCATION_MINIFIED_PAYLOAD

Why this grade

  • NETWORK_HOST_FROM_INPUT High

    A file takes a URL or endpoint as input and has no fixed host list.

    packages/extension/src/commands/formulaFile.ts, line 58 response = await fetch(`http://127.0.0.1:${port}/mcp`, {

  • SECRETS_PATH_CREDENTIAL Medium

    Mentions a credential store path (~/.ssh, id_rsa, .npmrc, .aws/credentials, credentials.json, .netrc).

    packages/extension/src/mcp/auth-manager.ts, line 202 // is never written to disk (no plaintext credentials.json) and never logged.

  • OBFUSCATION_ENCODED_BLOB Medium

    Contains a long base64 shaped string in a file that should be readable.

    pnpm-lock.yaml, line 1 lockfileVersion: '9.0'

  • OBFUSCATION_MINIFIED_PAYLOAD Medium

    Contains a very long line with almost no spaces in a script or style file.

    pnpm-lock.yaml, line 1 lockfileVersion: '9.0'

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.

If you think this grade is wrong, email [email protected] with the entry link and your evidence. We aim to acknowledge within two working days and decide within seven. If we confirm an error, we aim to correct it within 24 hours of confirming it. These are aims, not guarantees.

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

    Concern

    can delete files.

    PERMISSION_DELETE_FILES

    packages/extension/src/mcp/auth-manager.ts, line 336

    await fs.rm(PROFILE_DIR, { recursive: true, force: true });

    packages/extension/src/mcp/session-backup.ts, line 78

    await fs.rm(stagingDir, { recursive: true, force: true }).catch(() => {});

    packages/extension/src/mcp/session-backup.ts, line 140

    await fs.rm(backupAside, { recursive: true, force: true }).catch(() => {});

    Show more

    packages/extension/src/mcp/session-backup.ts, line 145

    await fs.rm(stagingDir, { recursive: true, force: true }).catch(() => {});

    packages/mcp-server/src/cli.js, line 186

    await fs.rm(profileDir, { recursive: true, force: true });

  • Install and update

    Pass

    No install-time script found, and dependencies are pinned or absent.

  • Network

    Serious

    accepts a host from input, with no fixed list in this file.

    NETWORK_HOST_FROM_INPUT

    packages/extension/src/commands/formulaFile.ts, line 58

    response = await fetch(`http://127.0.0.1:${port}/mcp`, {

    packages/extension/src/mcp/auth-manager.ts, line 599

    const resp = await fetch(`http://127.0.0.1:${status.port}/daemon/session-health`, {

    packages/extension/src/mcp/auth-manager.ts, line 674

    const res = await fetch(`http://127.0.0.1:${status.port}/daemon/release-browser`, {

    Show more

    packages/extension/src/mcp/daemon-manager.ts, line 117

    const response = await fetch(`http://127.0.0.1:${port}/daemon/health`, {

    packages/extension/src/mcp/daemon-manager.ts, line 293

    const res = await fetch(`http://127.0.0.1:${status.port}/daemon/shutdown`, {

    packages/extension/src/mcp/daemon-manager.ts, line 1168

    const res = await fetch(`http://127.0.0.1:${port}/daemon/health`, {

    packages/extension/src/mcp/daemon-manager.ts, line 1251

    const resp = await fetch(`http://127.0.0.1:${status.port}/daemon/auth-credentials`, {

    packages/extension/src/webview/DashboardProvider.ts, line 716

    const createResp = await fetch(`http://127.0.0.1:${status.port}/daemon/tunnel/named-create`, {

    packages/extension/src/webview/DashboardProvider.ts, line 1460

    const loginResp = await fetch(`${base}/daemon/tunnel/named-login`, {

    packages/extension/src/webview/DashboardProvider.ts, line 1485

    const createResp = await fetch(`${base}/daemon/tunnel/named-create`, {

    packages/extension/src/webview/DashboardProvider.ts, line 1498

    const enableResp = await fetch(`${base}/daemon/enable-tunnel`, {

    packages/extension/src/webview/DashboardProvider.ts, line 1578

    const resp = await fetch('https://registry.npmjs.org/airtable-user-mcp');

    packages/language-services/src/engines/automation/diagnostics.ts, line 339

    message: 'remoteFetchAsync is not available in Automation Scripts - use fetch() instead.',

    packages/language-services/src/engines/automation/registry.ts, line 112

    fetch requests per automation run.\n\n`fetch(url: string, init?: RequestInit): Promis

    packages/language-services/src/engines/script/registry.ts, line 209

    description: 'Standard browser fetch function. Subject to CORS restrictions.\n\n`fetch(url: string, init?: RequestInit): Promise<Response>`',

    packages/mcp-server/src/client.js, line 2705

    const res = await fetch(presignedUrl, {

    packages/mcp-server/src/direct-login.js, line 104

    fetch: (url, options) => fetch(url, {

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_ENV_READ SECRETS_PATH_CREDENTIAL

    packages/extension/src/mcp/auth-manager.ts, line 202

    // is never written to disk (no plaintext credentials.json) and never logged.

    packages/mcp-server/src/auth.js, line 122

    // and uses a pasted session cookie (AIRTABLE_COOKIE / credentials.json).

    packages/mcp-server/src/auth.js, line 447

    S_INVALID: the provided AIRTABLE_COOKIE/credentials.json cookie was rejected (status ${result.st

    Show more

    packages/mcp-server/src/auth.js, line 722

    `BYO_CREDENTIALS_EXPIRED: cookie no longer valid - paste a fresh cookie into ~/.airtable-user-mcp/credentials.json or AIRTABLE_COOKIE.\nResponse: ${sessionErrorDetail(result)}`

    packages/mcp-server/src/byo-credentials.js, line 17

    * 2. file ~/.airtable-user-mcp/credentials.json { cookie, csrf? }

    packages/mcp-server/src/byo-credentials.js, line 27

    return path.join(getHomeDir(), 'credentials.json');

    packages/mcp-server/src/direct-login.js, line 268

    let p = injected.password ?? password ?? process.env.AIRTABLE_PASSWORD;

    packages/mcp-server/src/direct-login.js, line 269

    let t = injected.totpSecret ?? totpSecret ?? process.env.AIRTABLE_TOTP_SECRET;

    packages/mcp-server/src/login-runner.js, line 115

    let password = process.env.AIRTABLE_PASSWORD;

    packages/mcp-server/src/login-runner.js, line 116

    let otpSecret = process.env.AIRTABLE_OTP_SECRET || null;

    packages/mcp-server/src/login.js, line 64

    password: opts.password || process.env.AIRTABLE_PASSWORD,

    packages/mcp-server/src/login.js, line 65

    otpSecret: opts.otpSecret || process.env.AIRTABLE_OTP_SECRET || null,

    scripts/safe-symlinks.test.mjs, line 78

    writeFileSync(join(markerDir, 'id_rsa'), 'MARKER-CREDENTIAL-DO-NOT-COPY');

    scripts/safe-symlinks.test.mjs, line 148

    writeFileSync(join(outside, 'credentials.json'), '{"MARKER":"CREDENTIAL-DO-NOT-COPY"}');

  • 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. contains a minified payload.

    OBFUSCATION_ENCODED_BLOB OBFUSCATION_MINIFIED_PAYLOAD

    pnpm-lock.yaml, line 1

    lockfileVersion: '9.0'

    packages/mcp-server/src/icon.js, line 2

    ICON_DATA_URI = 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAIAAAABtCAYAAABp5GmXAAAACXBIWXMAAAlyAAAJcgErz99GAAAAGXRFWHRTb2Z0d2FyZQB3d3cuaW5rc2NhcGUub3Jnm+48GgAADZJJREFUeJztnXuUV

    packages/mcp-server/src/icon.js, line 2

    export const ICON_DATA_URI = 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAIAAAABtCAYAAABp5GmXAAAACXBIWXMAAAlyAAAJcgErz99GAAAAGXRFWHRTb2Z0d2FyZQB3d3cuaW5rc2NhcGUub3Jnm+48GgAADZJJ

  • Licence

    Pass

    A licence file is present (LICENSE).

  • Maintainer activity

    Pass

    The latest commit is within the last 365 days.

Get the full report on this tool, £49

Note

Hygiene check of commit 1156119825ae. can delete files. accepts a host from input, with no fixed list in this file. reads a credential or environment file. contains an encoded blob in a file that should be readable. contains a minified payload.

Date and source

Date checked:

View source

github.com

Commit graded: 1156119825ae9f1be271db0780ebefa4390bb14b

This link goes to the original host. PlugVet does not host or check what you download from there, and installing it is your own decision and risk.

Read how this letter is chosen