karajan-code@4.51.0

Local multi-agent coding orchestrator with TDD, SonarQube, and code review pipeline

AI Security Review

scanned 10d ago · by lpm-firewall-ai

The lifecycle hook makes an unprompted change to two agent configurations, creating a concrete first-party extension lifecycle risk. The source inspected supports a warning, not a publish block.

Static reason

High-risk behavior combination matched malicious policy.; source matched previously finalized malicious package; routed for review

Trigger

Installing the package through npm triggers its postinstall script.

Impact

Claude Code and Codex gain access to the package's MCP server after installation, without a separate setup confirmation.

Mechanism

The script writes MCP server entries into Claude and Codex configuration files, pointing to the package's local server.

AI rationale

The lifecycle hook makes an unprompted change to two agent configurations, creating a concrete first-party extension lifecycle risk. The source inspected supports a warning, not a publish block.

Evidence

package.jsonscripts/postinstall.js~/.claude.json~/.codex/config.toml

Decision evidence

public snapshot

AI called this Suspicious at 94.0% confidence as Dangerous Capability with medium false-positive risk.

Evidence for warning

The manifest runs scripts/postinstall.js automatically after installation.
The postinstall routine invokes both agent setup functions without a consent check.
The routine adds a package-owned local MCP server to Claude configuration and writes the updated configuration.
It also writes a karajan-mcp entry to Codex configuration.

Evidence against

The configured MCP server uses the package's local server entrypoint over stdio; the inspected postinstall setup shows no network transfer.

Behavioral surface

Source

ChildProcessCryptoDynamicRequireEnvironmentVarsFilesystemNetworkShellWebSocket

Supply chain

HighEntropyStringsUrlStrings

Manifest

CopyleftLicense

scanned 731 file(s), 3.97 MB of source, external domains: aider.chat, aistudio.google.com, antigravity.google, api.github.com, cli.github.com, console.anthropic.com, developers.openai.com, docs.anthropic.com, docs.docker.com, docs.github.com, docs.sonarsource.com, firestore.googleapis.com, fonts.googleapis.com, fonts.gstatic.com, get.docker.com, git-scm.com, github.com, google.github.io, karajan-code.web.app, karajancode.com, nodejs.org, ollama.com, opencode.ai, platform.openai.com, raw.githubusercontent.com, registry.npmjs.org, semgrep.dev, sonarcloud.io, www.docker.com, www.w3.org

Source & flagged code

24 flagged

package.jsonView file

•scripts.postinstall = node scripts/postinstall.js

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg

•scripts.postinstall = node scripts/postinstall.js

Medium

Ambiguous Install Lifecycle Script

Install-time lifecycle script is not statically allowlisted and needs review.

package.jsonView on unpkg

scripts/dual-publish.mjsView file

17import { readFileSync, writeFileSync } from "node:fs"; L18: import { execFileSync } from "node:child_process"; L19: import { join, dirname, resolve } from "node:path";

High

Child Process

Package source references child process execution.

scripts/dual-publish.mjsView on unpkg · L17

src/review/card-verify.jsView file

17L18: const execAsync = promisify(exec); L19: export const VERIFY_TIMEOUT_MS = 4000;

High

Shell

Package source references shell execution.

src/review/card-verify.jsView on unpkg · L17

scripts/verify-pack.mjsView file

114// pattern lookalikes). L115: const { scanPaths, loadPrivacyList } = await import( L116: path.join(repoRoot, "src", "privacy", "scan.js")

Medium

Dynamic Require

Package source references dynamic require/import behavior.

scripts/verify-pack.mjsView on unpkg · L114

src/sonar/project-key.jsView file

•matchType = normalized_sha256 matchedPackage = karajan-code@4.49.3 matchedPath = src/sonar/project-key.js matchedIdentity = npm:a2FyYWphbi1jb2Rl:4.49.3 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.

src/sonar/project-key.jsView on unpkg

83const explicit = String( L84: options.projectKey || process.env.KJ_SONAR_PROJECT_KEY || config?.sonarqube?.project_key || "" L85: ).trim(); ... L99: const remote = await runCommand("git", ["config", "--get", "remote.origin.url"]); L100: const remoteUrl = String(remote.stdout || "").trim(); L101: if (remote.exitCode !== 0 || !remoteUrl) {

Low

Weak Crypto

Package source references weak cryptographic algorithms.

src/sonar/project-key.jsView on unpkg · L83

scripts/install.jsView file

4import path from "node:path"; L5: import { spawn } from "node:child_process"; L6: import readline from "node:readline/promises"; L7: import { stdin as input, stdout as output } from "node:process"; L8: import { tomlPath } from "./toml-value.js"; ... L10: const rl = readline.createInterface({ input, output }); L11: const REGISTRY_PATH = path.join(os.homedir(), ".karajan", "instances.json"); L12: const INSTALL_STATE_PATH = path.join(os.homedir(), ".karajan", "install-state.json"); L13: const AGENT_META = { L14: codex: { bin: "codex", installUrl: "https://developers.openai.com/codex/cli" }, L15: claude: { bin: "claude", installUrl: "https://docs.anthropic.com/en/docs/claude-code" }, ... L120: if (cliValue !== undefined) return cliValue;

Medium

Install Persistence

Source writes installer persistence such as shell profile or service configuration.

scripts/install.jsView on unpkg · L4

scripts/postinstall.jsView file

26await fs.mkdir(path.dirname(file), { recursive: true }); L27: await fs.writeFile(file, `${JSON.stringify(obj, null, 2)}\n`, "utf8"); L28: } L29: L30: const CLAUDE_JSON_PATH = path.join(os.homedir(), ".claude.json"); L31: ... L77: async function setupClaudeMcp(config, kjHome) { L78: config.mcpServers = config.mcpServers || {}; L79: // Keep every env key the user added to the entry; only the home is ours, L80: // and it is written under the current name (KJ_HOME is deprecated). L81: const { KJ_HOME: _stale, ...userEnv } = config.mcpServers["karajan-mcp"]?.env || {}; L82: config.mcpServers["karajan-mcp"] = {

Critical

Ai Agent Control Hijack

Source creates an unconsented AI-agent control surface through install-time mutation or a default unauthenticated remote skill channel.

scripts/postinstall.jsView on unpkg · L26

src/audit/basal-cost.jsView file

76return new Promise((resolve) => { L77: execFile("npx", ["depcheck", "--json"], { cwd: projectDir, timeout: 30000 }, (err, stdout) => { L78: if (err && !stdout) {

High

Runtime Package Install

Package source invokes a package manager install command at runtime.

src/audit/basal-cost.jsView on unpkg · L76

vendor/tree-sitter-grammars/python.wasmView file

•path = vendor/tree-sitter-grammars/python.wasm kind = wasm_module sizeBytes = 457883 magicHex = [redacted]

Medium

Ships Wasm Module

Package ships WebAssembly modules.

vendor/tree-sitter-grammars/python.wasmView on unpkg

scripts/install-binary.shView file

•path = scripts/install-binary.sh kind = build_helper sizeBytes = 7790 magicHex = [redacted]

Medium

Ships Build Helper

Package ships non-JavaScript build or shell helper files.

scripts/install-binary.shView on unpkg

bin/kj-tailView file

•stage = ast_semantic_analysis; reason = ast_parse_error; limitedFiles = 24

High

Semantic Analysis Limited

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

bin/kj-tailView on unpkg

src/cli/register-meta.jsView file

•matchType = token_shingles matchedPackage = karajan-code@4.49.3 matchedPath = src/cli/register-meta.js matchedIdentity = npm:a2FyYWphbi1jb2Rl:4.49.3 similarity = 1.000 shingleOverlap = 48 summary = source token shingles overlapped finalized malicious source

High

Known Malware Source Similarity

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

src/cli/register-meta.jsView on unpkg

src/commands/board.jsView file

•matchType = normalized_sha256 matchedPackage = karajan-code@4.49.3 matchedPath = src/commands/board.js matchedIdentity = npm:a2FyYWphbi1jb2Rl:4.49.3 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.

src/commands/board.jsView on unpkg

src/utils/update-check.jsView file

•matchType = normalized_sha256 matchedPackage = karajan-code@4.49.3 matchedPath = src/utils/update-check.js matchedIdentity = npm:a2FyYWphbi1jb2Rl:4.49.3 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.

src/utils/update-check.jsView on unpkg

packages/ai-trash/src/git-snapshot.jsView file

•matchType = normalized_sha256 matchedPackage = karajan-code@4.49.3 matchedPath = packages/ai-trash/src/git-snapshot.js matchedIdentity = npm:a2FyYWphbi1jb2Rl:4.49.3 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.

packages/ai-trash/src/git-snapshot.jsView on unpkg

src/commands/audit.jsView file

•matchType = normalized_sha256 matchedPackage = karajan-code@4.49.3 matchedPath = src/commands/audit.js matchedIdentity = npm:a2FyYWphbi1jb2Rl:4.49.3 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.

src/commands/audit.jsView on unpkg

src/commands/go.jsView file

•matchType = normalized_sha256 matchedPackage = karajan-code@4.49.3 matchedPath = src/commands/go.js matchedIdentity = npm:a2FyYWphbi1jb2Rl:4.49.3 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.

src/commands/go.jsView on unpkg

src/commands/install-tools.jsView file

•matchType = normalized_sha256 matchedPackage = karajan-code@4.49.3 matchedPath = src/commands/install-tools.js matchedIdentity = npm:a2FyYWphbi1jb2Rl:4.49.3 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.

src/commands/install-tools.jsView on unpkg

src/hu/store.jsView file

•matchType = normalized_sha256 matchedPackage = karajan-code@4.49.3 matchedPath = src/hu/store.js matchedIdentity = npm:a2FyYWphbi1jb2Rl:4.49.3 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.

src/hu/store.jsView on unpkg

src/utils/tool-installer.jsView file

•matchType = normalized_sha256 matchedPackage = karajan-code@4.49.3 matchedPath = src/utils/tool-installer.js matchedIdentity = npm:a2FyYWphbi1jb2Rl:4.49.3 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.

src/utils/tool-installer.jsView on unpkg

src/checks/mcp-health.jsView file

•matchType = normalized_sha256 matchedPackage = karajan-code@4.49.3 matchedPath = src/checks/mcp-health.js matchedIdentity = npm:a2FyYWphbi1jb2Rl:4.49.3 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.

src/checks/mcp-health.jsView on unpkg

src/commands/init.jsView file

•matchType = normalized_sha256 matchedPackage = karajan-code@4.49.3 matchedPath = src/commands/init.js matchedIdentity = npm:a2FyYWphbi1jb2Rl:4.49.3 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.

src/commands/init.jsView on unpkg

Source & flagged code

24 flagged · loading source

package.jsonView file

•scripts.postinstall = node scripts/postinstall.js

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg

•scripts.postinstall = node scripts/postinstall.js

Medium

Ambiguous Install Lifecycle Script

Install-time lifecycle script is not statically allowlisted and needs review.

package.jsonView on unpkg

scripts/dual-publish.mjsView file

17import { readFileSync, writeFileSync } from "node:fs"; L18: import { execFileSync } from "node:child_process"; L19: import { join, dirname, resolve } from "node:path";

High

Child Process

Package source references child process execution.

scripts/dual-publish.mjsView on unpkg · L17

Findings

1 Critical17 High8 Medium7 Low

CriticalAi Agent Control Hijackscripts/postinstall.js

HighInstall Time Lifecycle Scriptspackage.json

HighChild Processscripts/dual-publish.mjs

HighShellsrc/review/card-verify.js

HighRuntime Package Installsrc/audit/basal-cost.js

HighSemantic Analysis Limitedbin/kj-tail

HighKnown Malware Source Similaritysrc/cli/register-meta.js

HighKnown Malware Source Similaritysrc/commands/board.js

HighKnown Malware Source Similaritysrc/utils/update-check.js

HighKnown Malware Source Similaritypackages/ai-trash/src/git-snapshot.js

HighKnown Malware Source Similaritysrc/commands/audit.js

Affected versions and remediation

This report applies to karajan-code@4.51.0.

See all versions of karajan-code for other recorded verdicts.

Review the evidence and your use of karajan-code@4.51.0 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: 2026-10-13 12:45:59.108Z (UTC).

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

AI Security Review

Decision evidence

Source & flagged code

Source & flagged code

Findings

Affected versions and remediation

Runtime surface

Behavioral surface

Source & flagged code