registry / Data exfiltration / @p4code/cli / 0.4.8

@p4code/cli@0.4.8

P4 Code coding agent server and command-line client

AI Security Review

scanned 1mo ago · by lpm-firewall-ai

The package has no install-time hook and does not transmit raw credentials, but default runtime telemetry reads identifiers from unrelated AI-client authentication/configuration files and exports a stable derived identifier to a third party. This is a concrete privacy risk that warrants a warning rather than a publication block.

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

Running the p4c server with telemetry enabled.

Impact

A third party can receive a persistent pseudonymous identifier, event names, platform, architecture, version, and client type.

Mechanism

Default third-party telemetry using a hash of local AI-client account metadata.

AI rationale

Evidence

dist/bin.mjs~/.codex/auth.json~/.claude.json~/.p4/telemetry/anonymous-id

Network endpoints1

us.i.posthog.com/batch/

Decision evidence

public snapshot

AI called this Suspicious at 87.0% confidence as Dangerous Capability with low false-positive risk.

Evidence for warning

When the server runs, telemetry reads a Codex account ID from the user's auth file or a Claude user ID and hashes it.
Telemetry is enabled by default and sends the resulting persistent identifier with event and host metadata to PostHog.
The CLI can modify Claude MCP configuration, creating an additional agent-control capability when explicitly used.

Evidence against

package.json defines no preinstall, install, postinstall, or other lifecycle script.
The telemetry identifier is a SHA-256 hash of an account ID, not an access token or credential.
The telemetry code provides an environment-variable opt-out.
MCP configuration changes are exposed through runtime commands, not automatic npm installation.

Behavioral surface

Source

ChildProcessCryptoEnvironmentVarsFilesystemNetworkShell

Supply chain

HighEntropyStringsMinifiedPossibleObfuscation

Source & flagged code

22 flagged

dist/client/assets/index-Cru6mBsL.jsView file

483?|[ L484: \v\f\u2028\u2029])`),t));else if(c===`posix`)if(!i&&(u===`graph`||u===`print`)){if(r===`strict`)throw Error(`POSIX class "${u}" requires min target ES2024 or non-strict accuracy`)... L485: `)),e}var UK=Symbol(`no-token`),WK=Symbol(`multiple-tokens`);function GK(e){let t=p2e(e);if(t!=null)return t;let n=UK,r=[],i=[],a,o=()=>{if(i.length===0||a==null){i=[],a=void 0;ret...

High

Child Process

Package source references child process execution.

dist/client/assets/index-Cru6mBsL.jsView on unpkg · L483

dist/bin.mjsView file

13import * as NodeOS from "node:os"; L14: import * as NodeNet from "node:net"; L15: import * as Data from "effect/Data"; ... L21: import * as NodePath from "node:path"; L22: import * as NodeChildProcess from "node:child_process"; L23: import * as NodeFS from "node:fs"; ... L240: //#endregion L241: //#region package.json L242: var version = "0.4.8"; ... L375: /** L376: * Escapes a single argument for `cmd.exe` shell mode (`spawn(..., { shell: true })` L377: * 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"; ... L21: import * as NodePath from "node:path"; L22: import * as NodeChildProcess from "node:child_process"; L23: import * as NodeFS from "node:fs"; ... L240: //#endregion L241: //#region package.json L242: var version = "0.4.8"; ... L375: /** L376: * Escapes a single argument for `cmd.exe` shell mode (`spawn(..., { shell: true })` L377: * 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@0.4.16 matchedIdentity = npm:QHA0Y29kZS9jbGk:0.4.16 similarity = 0.958 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

363const POSIX_PATH_DELIMITER = ":"; L364: const WINDOWS_SHELL_CANDIDATES = ["pwsh.exe", "powershell.exe"]; L365: function canExecuteFile(filePath) {

High

Shell

Package source references shell execution.

dist/bin.mjsView on unpkg · L363

•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

21import * as NodePath from "node:path"; L22: import * as NodeChildProcess from "node:child_process"; L23: import * as NodeFS from "node:fs"; ... L3682: name: TrimmedNonEmptyString, L3683: baseUrl: Schema$1.String L3684: });

High

Remote Agent Bridge

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

dist/bin.mjsView on unpkg · L21

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"; ... L21: import * as NodePath from "node:path"; L22: import * as NodeChildProcess from "node:child_process"; L23: import * as NodeFS from "node:fs"; ... L240: //#endregion L241: //#region package.json L242: var version = "0.4.8"; ... L375: /** L376: * Escapes a single argument for `cmd.exe` shell mode (`spawn(..., { shell: true })` L377: * 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 = 9

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 = 5334363 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 = 5334363 magicHex = [redacted]

Medium

Oversized Cli Entrypoint

Package contains an oversized executable-looking CLI entrypoint.

dist/bin.mjsView 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