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blun-king-cli@9.1.519: Malicious npm security report (Block) | LPM Firewall

registry / blun-king-cli / 9.1.519

blun-king-cli@9.1.519

BLUN CLI - your own AI agent with a Telegram channel. Get it done. With BLUN.

AI Security Review

scanned 1mo ago · by lpm-firewall-ai

A normal CLI launch can register and repeatedly beacon runtime metadata to a hard-coded private-address hub when Mnemo is enabled without its own URL. The behavior is automatic and not part of the install hook.

Static reason

One or more suspicious static signals were detected.; source matched previously finalized malicious package; routed for review; previous stored version diff introduced dangerous source

Trigger

Run the blun or king command with an enabled Mnemo profile containing an agent name and no hub URL.

Impact

Discloses the host name, process ID, profile, package version, and agent identity to the hub.

Mechanism

Automatic heartbeat to a hard-coded Mnemo hub.

Attack narrative

The package combines an automatic install hook with a runtime dependency on its own package name. More concretely, its launcher starts a Mnemo connection whenever a qualifying profile exists. A profile with an enabled Mnemo server and agent name but no endpoint silently uses http://100.85.21.103:7117. It immediately posts registration metadata containing the machine hostname and process ID, then repeats heartbeats every minute. This undisclosed hard-coded endpoint is not a package vendor endpoint and creates a concrete runtime metadata-exfiltration channel.

AI rationale

The install hook itself is limited, but the executable contains an automatic hard-coded network beacon that discloses host metadata on normal use. The self-dependency adds supply-chain risk.

Evidence

package.jsonbin/launcher-runtime.jsbin/mnemo-connect-heartbeat.cjsscripts/fix-node-pty-perms.js

Network endpoints1

Source & flagged code

15 flagged · loading source

package.jsonView file

•scripts.postinstall = node scripts/fix-node-pty-perms.js

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg

bin/update-lease.jsView file

7const path = require('node:path'); L8: const { spawn } = require('node:child_process'); L9:

High

Child Process

Package source references child process execution.

bin/update-lease.jsView on unpkg · L7

telegram-plugin/dist/noise.mjsView file

166try { L167: new Function(""); L168: return true;

Low

Eval

Package source references a known benign dynamic code generation pattern.

telegram-plugin/dist/noise.mjsView on unpkg · L166

bin/cognitive-state-store.cjsView file

2L3: const crypto = require('node:crypto'); L4: const fs = require('node:fs');

Medium

Dynamic Require

Package source references dynamic require/import behavior.

bin/cognitive-state-store.cjsView on unpkg · L2

scripts/check-mcp-startup-wait-budget.jsView file

7L8: const bundlePath = path.resolve(__dirname, '..', 'blun.mjs'); L9: const source = fs.readFileSync(bundlePath, 'utf8'); ... L43: assert.equal(initialLoadFinished, false, 'the slow MCP must continue loading in the background'); L44: process.stdout.write(`MCP startup wait regression: PASS (${Math.round(elapsedMs)} ms)\n`); L45: })().catch((error) => {

Medium

Unsafe Vm Context

Package source executes code through a VM context API.

scripts/check-mcp-startup-wait-budget.jsView on unpkg · L7

telegram-plugin/dist/bridge.mjsView file

4import { randomBytes } from "node:crypto"; L5: import { spawn } from "node:child_process"; L6: import { Readable, Writable } from "node:stream"; ... L11: import telegramApprovalRelay from "../bin/telegram-approval-relay.cjs"; L12: import privateConversationPolicy from "../bin/telegram-private-conversation-policy.cjs"; L13: import telegramTextChunkPolicy from "../bin/telegram-text-chunk-policy.cjs"; ... L305: if (file.file_path === void 0) return void 0; L306: const res = await fetch(`https://api.telegram.org/file/bot${token}/${file.file_path}`); L307: const buf = Buffer.from(await res.arrayBuffer()); L308: const ext = file.file_path.split(".").pop() ?? "jpg"; ... L313: } catch (err) { L314: process.stderr.write(`telegram channel: photo download failed: ${String(err)}\n`);

High

Command Output Exfiltration

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

telegram-plugin/dist/bridge.mjsView on unpkg · L4

native/darwin/prebuilds/darwin-x64/darwin-modifiers.nodeView file

•path = native/darwin/prebuilds/darwin-x64/darwin-modifiers.node kind = native_binary sizeBytes = 12776 magicHex = [redacted]

Medium

Ships Native Binary

Package ships native binary artifacts.

native/darwin/prebuilds/darwin-x64/darwin-modifiers.nodeView on unpkg

standard-tools/language-guard/blun_language_guard.pyView file

•path = standard-tools/language-guard/blun_language_guard.py kind = build_helper sizeBytes = 30303 magicHex = [redacted]

Medium

Ships Build Helper

Package ships non-JavaScript build or shell helper files.

standard-tools/language-guard/blun_language_guard.pyView on unpkg

dist-web/vis/index.html.gzView file

•path = dist-web/vis/index.html.gz kind = high_entropy_blob sizeBytes = 125235 magicHex = [redacted]

High

Ships High Entropy Blob

Package ships high-entropy non-source blobs.

dist-web/vis/index.html.gzView on unpkg

•path = dist-web/vis/index.html.gz kind = compressed_blob sizeBytes = 125235 magicHex = [redacted]

Medium

Ships Compressed Blob

Package ships compressed or archive-like blobs.

dist-web/vis/index.html.gzView on unpkg

blun.mjsView file

•path = blun.mjs kind = oversized_source_file sizeBytes = 21025051 magicHex = [redacted]

Medium

Oversized Source File

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

blun.mjsView on unpkg

•path = blun.mjs kind = oversized_cli_entrypoint sizeBytes = 21025051 magicHex = [redacted]

Medium

Oversized Cli Entrypoint

Package contains an oversized executable-looking CLI entrypoint.

blun.mjsView on unpkg

agent-spine-plugin/scripts/release-check.jsView file

•stage = ast_semantic_analysis; reason = ast_trace_path_limit_exceeded; limitedFiles = 13

High

Semantic Analysis Limited

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

agent-spine-plugin/scripts/release-check.jsView on unpkg

dist-web/assets/cytoscape.esm-nFXppDBa.jsView file

•matchType = normalized_sha256 matchedPackage = termdock@1.4.122 matchedPath = dist/client/assets/cytoscape.esm-D3_iZ_3b.js matchedIdentity = npm:dGVybWRvY2s:1.4.122 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-web/assets/cytoscape.esm-nFXppDBa.jsView on unpkg

bin/launcher-runtime.jsView file

•matchType = previous_version_dangerous_delta matchedPackage = blun-king-cli@9.1.509 matchedIdentity = npm:Ymx1bi1raW5nLWNsaQ:9.1.509 similarity = 0.883 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.

bin/launcher-runtime.jsView on unpkg