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@seemseam/ccb@8.6.17: Suspicious npm security report (Warn) | LPM Firewall

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Threat feed How it works Policy

Threat feed How it works Policy

Flagged — allowed with a warning

Allowed by default policy, but 13 finding(s) warrant review before installing.

View on npm All versions

registry / @seemseam/ccb / 8.6.17

@seemseam/ccb@8.6.17

Lightweight multi-agent TUI and stable cross-provider collaboration layer for Codex, Claude, Gemini, Grok, Kimi, and other CLI agents.

AI Security Review

scanned 23d ago · by lpm-firewall-ai

Installation downloads an opaque release archive, extracts it, and executes its included shell installer. The shipped JavaScript does not independently authenticate that payload.

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

npm installation runs the postinstall hook.

Impact

A substituted or compromised release payload can execute commands during installation.

Mechanism

Remote archive download followed by shell-script execution.

AI rationale

This is an automatic postinstall remote-code execution path whose payload is not contained in the reviewed package and lacks independent verification. The observed behavior is package-aligned but remains a material supply-chain risk rather than confirmed malicious intent.

Evidence

package.jsonbin/ccb-npm-install.js.ccb-release

Network endpoints1

github.com/SeemSeam/claude_codex_bridge/releases/download/v${version}

Decision evidence

public snapshot

AI called this Suspicious at 91.0% confidence as Critical Vulnerability with medium false-positive risk.

Stop threats before they install.

Firewall

Threat feed
How it works
Policy

LPM

Evidence for warning

The manifest automatically runs a postinstall installer.
The installer downloads a platform archive and its checksum from GitHub.
The downloaded archive is extracted and its install.sh is run with bash.
The checksum is fetched from the same remote release location as the archive.

Evidence against

The configured default endpoint is the project's GitHub releases URL.
Writes shown in the inspected JavaScript are confined to the package's .ccb-release directory and a temporary directory.
No credential collection, data exfiltration, or foreign agent-config mutation was found in the shipped JavaScript.

Behavioral surface

Source

ChildProcessCryptoDynamicRequireEnvironmentVarsFilesystemNetwork

Supply chain

HighEntropyStringsUrlStrings

Manifest

CopyleftLicense

scanned 6 file(s), 10.8 KB of source, external domains: github.com

Source & flagged code

5 flagged · loading source

package.jsonView file

•scripts.postinstall = node bin/ccb-npm-install.js

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg

bin/ask.jsView file

3L4: require("./ccb-npm-runner").run("ask");

Medium

Dynamic Require

Package source references dynamic require/import behavior.

bin/ask.jsView on unpkg · L3

bin/ccb-npm-install.jsView file

•matchType = normalized_sha256 matchedPackage = @seemseam/ccb@8.6.15 matchedPath = bin/ccb-npm-install.js matchedIdentity = npm:QHNlZW1zZWFtL2NjYg:8.6.15 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.

bin/ccb-npm-install.jsView on unpkg

•matchType = malicious_source_fingerprint_signature signature = 04a58e456c447292 signatureType = suspicious_hashes sourceLabel = final_verdict:malicious matchedPackage = @seemseam/ccb@8.6.15 matchedPath = bin/ccb-npm-install.js matchedIdentity = npm:QHNlZW1zZWFtL2NjYg:8.6.15 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.

bin/ccb-npm-install.jsView on unpkg

bin/ccb-npm-runner.jsView file

•matchType = normalized_sha256 matchedPackage = @seemseam/ccb@8.6.15 matchedPath = bin/ccb-npm-runner.js matchedIdentity = npm:QHNlZW1zZWFtL2NjYg:8.6.15 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.

bin/ccb-npm-runner.jsView on unpkg

Findings

4 High4 Medium5 Low

HighInstall Time Lifecycle Scriptspackage.json

HighKnown Malware Source Similaritybin/ccb-npm-install.js

HighKnown Malware Source Similaritybin/ccb-npm-runner.js

HighKnown Malware Source Fingerprint Signaturebin/ccb-npm-install.js

MediumDynamic Requirebin/ask.js

MediumNetwork

MediumEnvironment Vars

MediumStructural Risk Force Deep Review

LowScripts Present

LowFilesystem

LowHigh Entropy Strings

LowUrl Strings

LowCopyleft License

Affected versions and remediation

This report applies to @seemseam/ccb@8.6.17.

See version security history for other recorded verdicts.

Review the evidence and your use of @seemseam/ccb@8.6.17 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: 2026-09-16 01:32:35.507Z (UTC).

91%Suspicious

AI assessment confidence

IntentCritical Vulnerability

TypeRemote Code Execution

False-positive riskMedium

Review stagesource_first_review

Firewall policyMatched warn-list

Package metadata

npm

Maintainersseemseam

Version8.6.17

Latest on npm8.7.8

PublishedSep 14, 2026

LicenseAGPL-3.0-only

Dependencies0

Integrityverified

Package size80.3 KB

Files19

Keywordsccbmulti-agentcodexclaudegeminigrokkimideepseek

LinksRepository Homepage Issues

Runtime surface

package.json

Entrypointsbin → ask, autonew, ccb +1

Runtimenode >=18os linux, darwincpu x64, arm64

Artifact252 KB · 19 files2 signature(s) · provenance

Install lifecyclepostinstall

Behavioral surface

ChildProcessCryptoDynamicRequireEnvironmentVarsFilesystemNetworkHighEntropyStringsUrlStringsCopyleftLicense

LPM.dev Registry

© 2026 LPM

Source & flagged code

5 flagged

package.jsonView file

Lines 34-72json

34 ],

35 "bin": {

36 "ccb": "bin/ccb.js",

37 "ask": "bin/ask.js",

38 "autonew": "bin/autonew.js",

39 "ctx-transfer": "bin/ctx-transfer.js"

40 },

41 "files": [

42 "bin/ccb.js",

43 "bin/ask.js",

44 "bin/autonew.js",

45 "bin/ctx-transfer.js",

46 "bin/ccb-npm-install.js",

47 "bin/ccb-npm-runner.js",

48 "README.md",

49 "README/*.md",

50 "LICENSE",

51 "VERSION"

52 ],

53 "scripts": {

54 "postinstall": "node bin/ccb-npm-install.js",

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg · L54

55 "pack:check": "npm pack --dry-run"

56 },

57 "engines": {

58 "node": ">=18"

59 },

60 "os": [

61 "linux",

62 "darwin"

63 ],

64 "cpu": [

65 "x64",

66 "arm64"

67 ],

68 "publishConfig": {

69 "access": "public"

70 }

71}

72

bin/ask.jsView file

Lines 1-5javascript

1#!/usr/bin/env node

2"use strict";

3

4require("./ccb-npm-runner").run("ask");

Medium

Dynamic Require

Package source references dynamic require/import behavior.

bin/ask.jsView on unpkg · L3

5

bin/ccb-npm-install.jsView file

•matchType = normalized_sha256 matchedPackage = @seemseam/ccb@8.6.15 matchedPath = bin/ccb-npm-install.js matchedIdentity = npm:QHNlZW1zZWFtL2NjYg:8.6.15 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.

bin/ccb-npm-install.jsView on unpkg

•matchType = malicious_source_fingerprint_signature signature = 04a58e456c447292 signatureType = suspicious_hashes sourceLabel = final_verdict:malicious matchedPackage = @seemseam/ccb@8.6.15 matchedPath = bin/ccb-npm-install.js matchedIdentity = npm:QHNlZW1zZWFtL2NjYg:8.6.15 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.

bin/ccb-npm-install.jsView on unpkg

bin/ccb-npm-runner.jsView file

•matchType = normalized_sha256 matchedPackage = @seemseam/ccb@8.6.15 matchedPath = bin/ccb-npm-runner.js matchedIdentity = npm:QHNlZW1zZWFtL2NjYg:8.6.15 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.

bin/ccb-npm-runner.jsView on unpkg