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@seemseam/ccb@8.7.4: 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 / 8.7.4

@seemseam/ccb@8.7.4

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

AI Security Review

scanned 10d ago · by lpm-firewall-ai

The postinstall hook retrieves and executes a release artifact that is outside the published npm tarball. No confirmed malicious payload is present in the inspected package source.

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 invokes the postinstall hook.

Impact

A party able to control the selected release source could supply code executed during installation.

Mechanism

The installer selects a configurable base URL, downloads an archive and checksum file, extracts the archive, then runs its install script with Bash.

AI rationale

This is a staged remote-payload installation capability activated by postinstall. It warrants a warning, but the inspected source alone does not establish malicious intent or an active attack.

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 Dangerous Capability with false-positive risk.

Stop threats before they install.

Firewall

Threat feed
How it works
Policy

LPM

low

Evidence for warning

The package automatically runs its installer after npm installation.
The installer accepts an environment-selected release base URL and downloads a release archive plus its checksum file from that location.
The downloaded archive is extracted into the package-managed release directory and its install script is run with Bash.
The checksum check does not establish an independent trust boundary because the archive and checksum file come from the same selected base URL.

Evidence against

The default download location is the named project’s GitHub releases URL.
The installer scopes extraction to its own .ccb-release directory.

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@8.7.4.

See version security history for other recorded verdicts.

Review the evidence and your use of @seemseam/ccb@8.7.4 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: 2026-09-29 08:05:30.823Z (UTC).

91%Suspicious

AI assessment confidence

IntentDangerous Capability

TypeStaged Payload Carrier

False-positive riskLow

Review stagesource_first_review

Firewall policyMatched warn-list

Package metadata

npm

Maintainersseemseam

Version8.7.4

Latest on npm8.7.8

PublishedSep 29, 2026

LicenseAGPL-3.0-only

Dependencies0

Integrityverified

Package size83.8 KB

Files19

Keywordsccbmulti-agentcodexclaudegeminigrokkimideepseek

LinksRepository Homepage Issues

Runtime surface

package.json

Entrypointsbin → ask, autonew, ccb +1

Runtimenode >=18os linux, darwincpu x64, arm64

Artifact266 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