spacecode@2.16.70

SpaceCode - launch cloud dev environments with AI coding agents

AI Security Review

scanned 1d ago · by lpm-firewall-ai

Inspected source resolves the credential redirect signal to configurable service endpoints and finds no install hook or hidden unrelated recipient. Telemetry is gated by POSTHOG_API_KEY and runs from the CLI path; the flagged source similarity did not establish malicious behavior.

Static reason

One or more suspicious static signals were detected.; source matched previously finalized malicious package; routed for review; source fingerprint signature matched known malicious package; routed for review

Trigger

Running a CLI command activates its runtime behavior; telemetry additionally requires POSTHOG_API_KEY.

Impact

No hidden credential export, install-time mutation, or destructive action was established.

Mechanism

Authentication requests use SpaceCode’s default service URLs or URLs selected through environment variables or saved configuration. Telemetry posts to PostHog only when its API key is present.

AI rationale

Network endpoints4

app.spacecode.appbackend.spacecode.appapi.spacecode.appus.i.posthog.com

Decision evidence

public snapshot

AI called this Clean at 91.0% confidence as Benign with low false-positive risk.

Evidence for AI clean decision

package.json exposes the CLI and MCP entrypoints, with no install lifecycle scripts; the flagged behavior runs through those commands.
Authentication uses SpaceCode’s app and backend defaults. Alternate URLs come from environment or saved configuration, and the config command saves a URL supplied by the operator.
Telemetry sends only when POSTHOG_API_KEY is set; the inspected launch event contains launch flags rather than a repository name or credential.
Prepared dependency sources show command parsing, terminal styling, and SDK build scripts; they do not establish an attack.

Evidence against

Behavioral surface

Source

ChildProcessCryptoEnvironmentVarsFilesystemNetworkShell

Supply chain

HighEntropyStringsUrlStrings

ManifestNo manifest risk signals triggered.

scanned 2 file(s), 1.60 MB of source, external domains: api.github.com, api.spacecode.app, app.spacecode.app, backend.spacecode.app, github.com, reactjs.org, sandbox.spacecode.app, us.i.posthog.com

Source & flagged code

12 flagged

dist/index.jsView file

1122try { L1123: const execAsync = (0, import_util.promisify)(import_child_process.exec); L1124: const options = {};

High

Child Process

Package source references child process execution.

dist/index.jsView on unpkg · L1122

1122try { L1123: const execAsync = (0, import_util.promisify)(import_child_process.exec); L1124: const options = {};

High

Shell

Package source references shell execution.

dist/index.jsView on unpkg · L1122

•Manifest-reachable source captures an API credential, sends it to a fixed unofficial gateway, and persists that redirection in agent or shell configuration. dist/index.js: baseUrl; constructor(baseUrl, token) { this.baseUrl = baseUrl ?? process.env.SPACECODE_API_URL ?? DEFAULT_API_URL; const url = `${this.baseUrl}${path6}`; headers["Authorization"] = `Bearer ${this.token}`; throw new AuthError("Authentication failed. Please check your API key or run a command to re-authenticate"); const response = await fetch(`${this.baseUrl}/health`, { const url = `${this.baseUrl}/api/auth/exchange`;

High

Credential Redirect Persistence

Manifest-reachable source sends a prompted API credential to a fixed unofficial gateway and persists the redirection.

dist/index.jsView on unpkg

253BackendApiClient = class { L254: baseUrl; L255: token; ... L1122: try { L1123: const execAsync = (0, import_util.promisify)(import_child_process.exec); L1124: const options = {}; ... L7689: if (stat2.size > 256 * 1024) continue; L7690: const content = fs.readFileSync(absPath, "utf-8"); L7691: this.options.send({ type: "file_sync", path: filePath, content });

High

Remote Agent Bridge

Source exposes local file and command tools to a remote model endpoint.

dist/index.jsView on unpkg · L253

38Cross-file remote execution chain: dist/index.js spawns dist/mcp/index.js; helper contains network access plus dynamic code execution. L38: function initPostHog() { L39: apiKey = process.env.POSTHOG_API_KEY || void 0; L40: host = (process.env.POSTHOG_HOST || host).replace(/\/+$/, ""); ... L46: if (!apiKey) return; L47: fetch(`${host}/capture/`, { L48: method: "POST", L49: headers: { "Content-Type": "application/json" }, L50: body: JSON.stringify({ L51: api_key: apiKey, ... L316: if (response.status === 429) { L317: const errorData = await response.json().catch(() => ({})); L318: const retryAfter = errorData.retryAfter ? new Date(errorData.retryAfter) : new Date(Date.now() + 12e4);

High

Cross File Remote Execution Context

Source spawns a local helper that also contains network and dynamic execution context; review data flow before blocking.

dist/index.jsView on unpkg · L38

•matchType = normalized_sha256 matchedPackage = spacecode@2.16.65 matchedPath = dist/index.js matchedIdentity = npm:c3BhY2Vjb2Rl:2.16.65 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

dist/index.jsView on unpkg

•matchType = malicious_source_fingerprint_signature signature = 892f9b166dcf3981 signatureType = suspicious_hashes sourceLabel = final_verdict:malicious matchedPackage = spacecode@2.16.65 matchedPath = dist/index.js matchedIdentity = npm:c3BhY2Vjb2Rl:2.16.65 similarity = 1.000 shingleOverlap = 3 summary = package final verdict is malicious

High

Known Malware Source Fingerprint Signature

Source fingerprint signature matches a known malicious package signature; route for source-aware review.

dist/index.jsView on unpkg

38function initPostHog() { L39: apiKey = process.env.POSTHOG_API_KEY || void 0; L40: host = (process.env.POSTHOG_HOST || host).replace(/\/+$/, ""); ... L46: if (!apiKey) return; L47: fetch(`${host}/capture/`, { L48: method: "POST", L49: headers: { "Content-Type": "application/json" }, L50: body: JSON.stringify({ L51: api_key: apiKey, ... L316: if (response.status === 429) { L317: const errorData = await response.json().catch(() => ({})); L318: const retryAfter = errorData.retryAfter ? new Date(errorData.retryAfter) : new Date(Date.now() + 12e4);

Low

Weak Crypto

Package source references weak cryptographic algorithms.

dist/index.jsView on unpkg · L38

dist/repl.mjsView file

•matchType = normalized_sha256 matchedPackage = spacecode@2.16.65 matchedPath = dist/repl.mjs matchedIdentity = npm:c3BhY2Vjb2Rl:2.16.65 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

dist/repl.mjsView on unpkg

•path = dist/repl.mjs kind = oversized_source_file sizeBytes = 4584874 magicHex = [redacted]

Medium

Oversized Source File

Package contains source files above the normal full-analysis size ceiling.

dist/repl.mjsView on unpkg

•path = dist/repl.mjs kind = oversized_cli_entrypoint sizeBytes = 4584874 magicHex = [redacted]

Medium

Oversized Cli Entrypoint

Package contains an oversized executable-looking CLI entrypoint.

dist/repl.mjsView on unpkg

dist/mcp/index.jsView file

•matchType = normalized_sha256 matchedPackage = spacecode@2.16.65 matchedPath = dist/mcp/index.js matchedIdentity = npm:c3BhY2Vjb2Rl:2.16.65 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

dist/mcp/index.jsView on unpkg

Source & flagged code

12 flagged · loading source

dist/index.jsView file

1122try { L1123: const execAsync = (0, import_util.promisify)(import_child_process.exec); L1124: const options = {};

High

Child Process

Package source references child process execution.

dist/index.jsView on unpkg · L1122

1122try { L1123: const execAsync = (0, import_util.promisify)(import_child_process.exec); L1124: const options = {};

High

Shell

Package source references shell execution.

dist/index.jsView on unpkg · L1122

High

Credential Redirect Persistence

Manifest-reachable source sends a prompted API credential to a fixed unofficial gateway and persists the redirection.

dist/index.js

Findings

9 High5 Medium4 Low

HighChild Processdist/index.js

HighShelldist/index.js

HighCredential Redirect Persistencedist/index.js

HighRemote Agent Bridgedist/index.js

HighCross File Remote Execution Contextdist/index.js

HighKnown Malware Source Similaritydist/index.js

HighKnown Malware Source Similaritydist/mcp/index.js

HighKnown Malware Source Similaritydist/repl.mjs

HighKnown Malware Source Fingerprint Signaturedist/index.js

MediumNetwork

MediumEnvironment Vars

MediumOversized Source Filedist/repl.mjs

MediumOversized Cli Entrypointdist/repl.mjs

Affected versions and remediation

This report applies to spacecode@2.16.70.

See all versions of spacecode for other recorded verdicts.

Review the evidence and your use of spacecode@2.16.70 before allowing it. Restrict the permissions described in this report.
Choose an independently verified alternative or release. This report does not establish that other versions are safe.

Evidence last updated: 2026-10-21 21:29:16.676Z (UTC).

Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.