Grades are a hygiene check, not a security guarantee.

MCP, MCP server

Crbro Memory

CRBRO is a local MCP (Model Context Protocol) server that gives your AI assistant persistent long-term memory across sessions.

Compatibility: Not stated.

Grade C

One Medium finding. Read the report before installing.

Graded by PlugVetRubric v2

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

SECRETS_PATH_CREDENTIAL

Why this grade

  • SECRETS_PATH_CREDENTIAL Medium

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

    scripts/check-publication.mjs, line 20 if (/(^|\/)(\.env(?:\.[^/]+)?|\.npmrc|keys\.dpapi|secrets\.enc[^/]*|id_rsa|id_ed25519|[^/]*service[-_]?account[^/]*\.json)$/i.test(normalized)

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

    Concern

    can delete files.

    PERMISSION_DELETE_FILES

    bin/crbro.mjs, line 565

    else { try { fs.rmSync(ep.stateFile(root, st.build), { force: true }); } catch { /* stale file, best effort */ } }

    bin/crbro.mjs, line 798

    for (const f of [hookScript, replacedPath]) { try { fs.unlinkSync(f); } catch { /* not there */ } }

    src/daemon/daemon.ts, line 279

    if (process.platform !== 'win32') await fs.rm(endpoint, { force: true });

    Show more

    src/daemon/daemon.ts, line 323

    if (st.dev === ownSocket.dev && st.ino === ownSocket.ino) await fs.rm(endpoint, { force: true });

    src/daemon/endpoint.ts, line 168

    await fs.rm(blockedFile(brainRoot, build), { force: true }).catch(() => undefined);

    src/daemon/endpoint.ts, line 187

    return async () => { await fs.rm(file, { force: true }).catch(() => undefined); };

    src/daemon/endpoint.ts, line 199

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

    src/daemon/endpoint.ts, line 231

    await fs.rm(stateFile(brainRoot, build), { force: true }).catch(() => undefined);

  • 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

    benchmarks/security/run.mjs, line 52

    { d: 'basic auth en URL', t: 'curl https://' + G('apiuser:', '8f3kd9sldkfj') + '@api.example.com/v1/data' },

    hooks/crbro-guard.mjs, line 36

    /** A flag names an action only where it changes what the program does to your files. `curl -s` and `grep -n` are not lessons. */

    src/daemon/daemon.ts, line 96

    const s = net.connect(endpoint);

    Show more

    src/daemon/proxy.ts, line 90

    const s = net.connect(state.endpoint);

    src/engine/triggers.ts, line 43

    + 'kubectl helm terraform wp composer php supabase vercel netlify wrangler aws az ssh scp rsync curl wget robocopy '

    src/engine/triggers.ts, line 54

    /** A flag names an action only where it changes what the program does to your files. `curl -s` and `grep -n` are not lessons. */

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_ENV_READ SECRETS_PATH_CREDENTIAL

    benchmarks/retrieval/run.mjs, line 78

    const KEYS = process.env.CRBRO_BENCH_KEYS

    benchmarks/retrieval/run.mjs, line 79

    ? new Map(JSON.parse(readFileSync(process.env.CRBRO_BENCH_KEYS, 'utf8')).map(e => [e.id, e.keys])) : null;

    scripts/check-publication.mjs, line 20

    if (/(^|\/)(\.env(?:\.[^/]+)?|\.npmrc|keys\.dpapi|secrets\.enc[^/]*|id_rsa|id_ed25519|[^/]*service[-_]?account[^/]*\.json)$/i.test(normalized)

    Show more

    bin/crbro.mjs, line 1238

    const dir = process.env['CRBRO_KEYS_DIR'] || join(homedir(), '.crbro-keys');

    mods/crbro-pending/hooks/register.tsx, line 188

    await $.env.get('CRBRO_LANG'),

    mods/crbro-pending/hooks/register.tsx, line 189

    await $.env.get('LC_ALL'),

    mods/crbro-pending/hooks/register.tsx, line 190

    await $.env.get('LC_MESSAGES'),

    mods/crbro-pending/hooks/register.tsx, line 191

    await $.env.get('LANG'),

    mods/crbro-pending/hooks/register.tsx, line 211

    const home = (await $.env.get('HOME')) || (await $.env.get('USERPROFILE'))

    mods/crbro-pending/hooks/register.tsx, line 212

    const dir = brainDir(home, await $.env.get('CRBRO_PATH'))

    src/engine/doctor.ts, line 207

    const raw = entry?.env?.CRBRO_PATH;

    src/engine/keychain.ts, line 45

    const dir = process.env['CRBRO_KEYS_DIR'] || join(homedir(), '.crbro-keys');

  • Agent instructions

    Pass

    No instruction to ignore earlier instructions or to hide a step.

  • Obfuscation

    Pass

    No encoded or minified payload found.

  • 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 0ead1c932af7. can delete files. can reach a host that is not written as a fixed address. reads a credential or environment file.

Date and source

Date checked:

View source

github.com

Commit graded: 0ead1c932af76f4ec8c74e5818cafd34923b9fcc

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