registry / Credential exfiltration / nixamp / 0.51.0

nixamp@0.51.0

It really whips the terminal's ass. A Winamp-shaped audio player for your terminal.

AI Security Review

scanned 2d ago · by lpm-firewall-ai

The remote token forwarding is an active, browser-triggered behavior, and the destination can be an arbitrary registered HTTP or HTTPS origin. The feature has an apparent server-management purpose, but forwarding the existing account session token leaves conditional credential exposure, so this warrants a warning rather than a block.

Static reason

High-risk behavior combination matched malicious policy.; previous stored version diff introduced dangerous source

Trigger

Opening the browser app while signed in, or selecting a registered remote server, causes authenticated API requests.

Impact

A receiving server can obtain the account session token and may use its associated account access.

Mechanism

The app retrieves the existing bearer token from nixamp.com, accepts registered HTTP or HTTPS server origins, and includes the token in cross-origin Authorization headers.

AI rationale

Evidence

web/dist/assets/radio-CDUEoM0y.jsdist/server.jsdist/servers.js

Network endpoints2

nixamp.comAccount-registered HTTP or HTTPS server origins

Decision evidence

public snapshot

AI called this Suspicious at 83.0% confidence as Dangerous Capability with medium false-positive risk.

Evidence for warning

The browser app obtains the signed-in nixamp.com bearer token and loads the account's registered server URLs.
When making API requests to a remote server, the app sends that bearer token in an Authorization header.
The app selects a registered server on page load; server URLs may be any HTTP or HTTPS origin.

Evidence against

The token is used by the app's server-management interface, and the server list is associated with the signed-in account.
The manifest defines a CLI entry point and no install lifecycle hook; the forwarding path is in the browser application.

Behavioral surface

Source

ChildProcessCryptoDynamicRequireEnvironmentVarsEvalFilesystemNetwork

Supply chain

HighEntropyStringsMinifiedPossibleObfuscationUrlStrings

ManifestNo manifest risk signals triggered.

Source & flagged code

7 flagged

dist/speech.jsView file

230try { L231: return (await import(__rewriteRelativeImportExtension(name))); L232: }

Medium

Dynamic Require

Package source references dynamic require/import behavior.

dist/speech.jsView on unpkg · L230

dist/catalogs.jsView file

127* decorates the URL on the next line, `#EXTGRP:News` names the group for L128: * lists that write it that way instead, and `#EXTIMG:https://...` is the L129: * picture for lists (a podcast's episodes, say) that carry one that way ... L209: throw new Error(`${source} answered ${answer.status}`); L210: const text = await answer.text(); L211: if (text.length > maxBytes)

Low

Weak Crypto

Package source references weak cryptographic algorithms.

dist/catalogs.jsView on unpkg · L127

web/dist/assets/radio-CDUEoM0y.jsView file

1import{n as e}from"./chunk-Q2XQMA4B-CDsJ8fBU.js";import{l as t}from"./remote-DJqvFdE6.js";var n=e=>document.querySelector(e);function r(e,t={},...n){let r=document.createElement(e)...

Critical

Hardcoded Runtime Data Exfiltration

Source sends credentials or rich application records to a package-controlled external receiver enabled by default.

web/dist/assets/radio-CDUEoM0y.jsView on unpkg · L1

dist/manage.jsView file

8*/ L9: import { spawnSync } from "node:child_process"; L10: import { existsSync, readFileSync } from "node:fs"; ... L12: import { fileURLToPath } from "node:url"; L13: const SITE = "https://nixamp.com"; L14: /** Windows has its own installer, its own shim and its own removal script. */ L15: const windows = process.platform === "win32"; L16: /** ... L21: export function installRoot(from = fileURLToPath(new URL(".", import.meta.url))) { L22: const declared = process.env["NIXAMP_HOME"]; L23: if (declared && existsSync(join(declared, "manifest.json"))) ... L42: try {

High

Sandbox Evasion Gated Capability

Source gates dangerous network, credential, or execution behavior behind CI, host, platform, time, or geo fingerprint checks.

dist/manage.jsView on unpkg · L8

web/dist/install.shView file

•path = web/dist/install.sh kind = build_helper sizeBytes = 15393 magicHex = [redacted]

Medium

Ships Build Helper

Package ships non-JavaScript build or shell helper files.

web/dist/install.shView on unpkg

dist/accounts.js#virtual:string-array:round1View file

•stage = ast_semantic_analysis; reason = ast_parse_error; limitedFiles = 14

High

Semantic Analysis Limited

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

dist/accounts.js#virtual:string-array:round1View on unpkg

dist/ai-label.jsView file

•matchType = previous_version_dangerous_delta matchedPackage = nixamp@0.28.3 matchedIdentity = npm:bml4YW1w:0.28.3 similarity = 0.425 summary = stored previous version shares package body but lacks this dangerous source file

High

Previous Version Dangerous Delta

This package version adds a dangerous source file absent from the previous stored version; route for source-aware review.

dist/ai-label.jsView on unpkg

Source & flagged code

7 flagged · loading source

dist/speech.jsView file

230try { L231: return (await import(__rewriteRelativeImportExtension(name))); L232: }

Medium

Dynamic Require

Package source references dynamic require/import behavior.

dist/speech.jsView on unpkg · L230

dist/catalogs.jsView file

Low

Weak Crypto

Package source references weak cryptographic algorithms.

dist/catalogs.jsView on unpkg · L127

web/dist/assets/radio-CDUEoM0y.jsView file

Findings

1 Critical3 High5 Medium6 Low

CriticalHardcoded Runtime Data Exfiltrationweb/dist/assets/radio-CDUEoM0y.js

HighSandbox Evasion Gated Capabilitydist/manage.js

HighSemantic Analysis Limiteddist/accounts.js#virtual:string-array:round1

HighPrevious Version Dangerous Deltadist/ai-label.js

MediumDynamic Requiredist/speech.js

MediumNetwork

MediumEnvironment Vars

MediumShips Build Helperweb/dist/install.sh

MediumStructural Risk Force Deep Review

LowScripts Present

LowEval

LowWeak Cryptodist/catalogs.js

LowFilesystem

LowHigh Entropy Strings

Affected versions and remediation

This report applies to nixamp@0.51.0.

See all versions of nixamp for other recorded verdicts.

Review the evidence and your use of nixamp@0.51.0 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: 2026-10-21 05:38:31.913Z (UTC).

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