registry / AI-agent capability abuse / @p4code/cli / 0.5.20

@p4code/cli@0.5.20

P4 Code coding agent server and command-line client

AI Security Review

scanned 1mo ago · by lpm-firewall-ai

The package has no lifecycle hook and the observed actions are tied to user-invoked device features, so there is insufficient evidence of malware. Its integrated remote command execution and runtime package installation warrant a warning as a dangerous capability.

Static reason

High-risk behavior combination matched malicious policy.; source matched previously finalized malicious package; routed for review; previous stored version diff introduced dangerous source

Trigger

A user invokes the device-host or remote-device workflow.

Impact

A user who targets an unintended or compromised SSH host could cause package installation and command execution there.

Mechanism

The workflow installs pinned packages through npm or pnpm and constructs Node code that is executed through SSH diagnostics.

AI rationale

Evidence

dist/bin.mjs

Decision evidence

public snapshot

AI called this Suspicious at 83.0% confidence as Dangerous Capability with medium false-positive risk.

Evidence for warning

The CLI includes a device-support workflow that installs two separately published packages at fixed versions.
That workflow runs npm, with a pnpm-based fallback, to fetch and install those packages when device support is requested.
The package also generates and runs diagnostic code through SSH on a configured remote host; this is a high-impact capability if used against an unintended host.

Evidence against

package.json exposes a CLI entry point and contains no npm lifecycle scripts, so installation does not activate this behavior.
The extra package installation is tied to the device-host ensure path rather than import or package installation.
No source evidence showed credential harvesting, hidden exfiltration, self-dependency, or destructive actions.

Behavioral surface

Source

ChildProcessCryptoDynamicRequireEnvironmentVarsEvalFilesystemNetworkShell

Supply chain

Source & flagged code

23 flagged

dist/bin.mjsView file

13import * as NodeOS from "node:os"; L14: import * as NodeNet from "node:net"; L15: import * as Data from "effect/Data"; ... L22: import { isAbsolute } from "node:path"; L23: import * as NodeChildProcess from "node:child_process"; L24: import { spawn } from "node:child_process"; ... L266: //#endregion L267: //#region package.json L268: var version$1 = "0.5.20"; ... L401: /** L402: * Escapes a single argument for `cmd.exe` shell mode (`spawn(..., { shell: true })` L403: * on Windows). Node joins the command and arguments with spaces and hands the

Critical

Sensitive Archive Exfiltration

Source archives sensitive local configuration and publishes encoded chunks through an authenticated package-registry request.

dist/bin.mjsView on unpkg · L13

Critical

Credential Exfiltration

Source appears to send environment or credential material to an external endpoint.

dist/bin.mjsView on unpkg · L13

13Trigger-reachable chain: manifest.bin -> dist/bin.mjs L13: import * as NodeOS from "node:os"; L14: import * as NodeNet from "node:net"; L15: import * as Data from "effect/Data"; ... L22: import { isAbsolute } from "node:path"; L23: import * as NodeChildProcess from "node:child_process"; L24: import { spawn } from "node:child_process"; ... L266: //#endregion L267: //#region package.json L268: var version$1 = "0.5.20"; ... L401: /** L402: * Escapes a single argument for `cmd.exe` shell mode (`spawn(..., { shell: true })` L403: * on Windows). Node joins the command and arguments with spaces and hands the

Critical

Trigger Reachable Dangerous Capability

A package entrypoint or install-time lifecycle script reaches a source file with blocking dangerous behavior.

dist/bin.mjsView on unpkg · L13

•matchType = previous_version_dangerous_delta matchedPackage = @p4code/cli@0.5.3 matchedIdentity = npm:QHA0Y29kZS9jbGk:0.5.3 similarity = 0.983 summary = stored previous version shares package body but lacks this dangerous source file

Critical

Previous Version Dangerous Delta

This package version adds a dangerous source file absent from the previous stored version; route for source-aware review.

dist/bin.mjsView on unpkg

22import { isAbsolute } from "node:path"; L23: import * as NodeChildProcess from "node:child_process"; L24: import { spawn } from "node:child_process";

High

Child Process

Package source references child process execution.

dist/bin.mjsView on unpkg · L22

•Manifest-reachable source captures an API credential, sends it to a fixed unofficial gateway, and persists that redirection in agent or shell configuration. dist/bin.mjs: import * as NodeReadline from "node:readline"; }).pipe(Effect.flatMap((encoded) => fs.writeFileString(cachePath, encoded)), Effect.ignore); var EnvironmentAuthorizationError = class extends Schema$1.TaggedErrorClass()("EnvironmentAuthorizationError", { baseUrl: Schema$1.String authorization: Schema$1.optionalKey(Schema$1.String), httpBaseUrl: TrimmedNonEmptyString, wsBaseUrl: TrimmedNonEmptyString, httpBaseUrl: Schema$1.NullOr(Schema$1.String),

High

Credential Redirect Persistence

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

dist/bin.mjsView on unpkg

High

Command Output Exfiltration

Source combines command execution, command-output handling, and outbound requests; review data flow before blocking.

dist/bin.mjsView on unpkg · L13

22import { isAbsolute } from "node:path"; L23: import * as NodeChildProcess from "node:child_process"; L24: import { spawn } from "node:child_process"; ... L1851: name: TrimmedNonEmptyString, L1852: baseUrl: Schema$1.String L1853: }); ... L49471: const dir = path.join(os.homedir(), '.p4', 'device', 'tools', name, version); L49472: try { return file(path.join(dir, 'node_modules', name, entry)) && fs.readFileSync(path.join(dir, '.install-complete'), 'utf8').trim() === version; } catch { return false; } L49473: };

High

Remote Agent Bridge

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

dist/bin.mjsView on unpkg · L22

13Trigger-reachable credential exfiltration chain: manifest.bin -> dist/bin.mjs L13: import * as NodeOS from "node:os"; L14: import * as NodeNet from "node:net"; L15: import * as Data from "effect/Data"; ... L22: import { isAbsolute } from "node:path"; L23: import * as NodeChildProcess from "node:child_process"; L24: import { spawn } from "node:child_process"; ... L266: //#endregion L267: //#region package.json L268: var version$1 = "0.5.20"; ... L401: /** L402: * Escapes a single argument for `cmd.exe` shell mode (`spawn(..., { shell: true })` L403: * on Windows). Node joins the command and arguments with spaces and hands the

High

Trigger Reachable Credential Exfiltration

A manifest entrypoint or package-local install chain reaches credential exfiltration behavior.

dist/bin.mjsView on unpkg · L13

•stage = ast_semantic_analysis; reason = ast_path_work_budget_exceeded; limitedFiles = 8

High

Semantic Analysis Limited

A bounded semantic-analysis stage reached its safety limit; remaining detectors completed, but this package requires AI review.

dist/bin.mjsView on unpkg

•path = dist/bin.mjs kind = oversized_source_file sizeBytes = 6687153 magicHex = [redacted]

Medium

Oversized Source File

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

dist/bin.mjsView on unpkg

•path = dist/bin.mjs kind = oversized_cli_entrypoint sizeBytes = 6687153 magicHex = [redacted]

Medium

Oversized Cli Entrypoint

Package contains an oversized executable-looking CLI entrypoint.

dist/bin.mjsView on unpkg

dist/client/assets/mdx-host-ykYobBl4.jsView file

Lines 1-4javascript

1const __vite__mapDeps=(i,m=__vite__mapDeps,d=(m.f||(m.f=["assets/Diagram-CP713Hf0.js","assets/rolldown-runtime-QTnfLwEv.js","assets/preload-helper-CEhsl8MR.js","assets/compiler-runtime-CLAvuQ-D.js"])))=>i.

dist/resource-monitor/darwin-x64/p4-resource-monitorView file

•path = dist/resource-monitor/darwin-x64/p4-resource-monitor kind = native_binary sizeBytes = 575344 magicHex = [redacted]

Medium

Ships Native Binary

Package ships native binary artifacts.

dist/resource-monitor/darwin-x64/p4-resource-monitorView on unpkg

dist/NodePtyAdapter-BQAnH2v0.mjsView file

•matchType = normalized_sha256 matchedPackage = @p4code/cli@0.4.12 matchedPath = dist/NodePtyAdapter-BQAnH2v0.mjs matchedIdentity = npm:QHA0Y29kZS9jbGk:0.4.12 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High