registry / Persistence / llm-failover-proxy / 1.9.0

llm-failover-proxy@1.9.0

OpenAI-compatible LLM proxy with automatic provider failover, streaming support, and a terminal UI to manage providers, models and priority order.

AI Security Review

scanned 2mo ago · by lpm-firewall-ai

The package has a real unconsented install-time persistence capability, warranting a warning. Its service is package-owned and the inspected source did not establish a malicious exfiltration or takeover chain.

Static reason

High-risk behavior combination matched malicious policy.; source matched previously finalized malicious package; routed for review; previous stored version diff introduced dangerous source

Trigger

npm postinstall during package installation

Impact

An installed package can remain running and relaunch for the user without an explicit enable command.

Mechanism

background service and OS login-entry registration

AI rationale

Evidence

package.jsonscripts/postinstall.jsscripts/preuninstall.jsdist/index.js.env.example

Decision evidence

public snapshot

AI called this Suspicious at 89.0% confidence as Dangerous Capability with medium false-positive risk.

Evidence for warning

postinstall starts a background daemon for local installs.
For global installs, postinstall invokes enable, which writes and activates an OS login entry.
The bundled enable command creates a launch agent, systemd-user unit, or Startup entry; this is install-time persistence.
preuninstall invokes disable, confirming the package manages its own persistent service.

Evidence against

Persistence is package-owned and documented as the proxy service, not a foreign AI-agent control surface.
Provider keys are read from configured environment/.env sources and used for configured proxy providers; no unrelated credential collection or exfiltration was confirmed.
No evidence of overwriting another installed package or executing remotely supplied code was found.

Behavioral surface

Source

ChildProcessCryptoEnvironmentVarsFilesystemNetworkShell

Supply chain

HighEntropyStrings

Source & flagged code

15 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

dist/index.jsView file

4var RR=Object.create;var Yd=Object.defineProperty;var bR=Object.getOwnPropertyDescriptor;var MR=Object.getOwnPropertyNames;var TR=Object.getPrototypeOf,_R=Object.prototype.hasOwnPr... L5: `).replace(/\\r/g,"\r").replace(/\\t/g," ").replace(/\\(["'\\])/g,"$1");if(t.length>=2&&t.startsWith("'")&&t.endsWith("'"))return t.slice(1,-1);let n=t.indexOf(" #");return(n===-1?... L6: `).trimEnd()} L7: `,{mode:384}),ta.renameSync(g,e);try{ta.chmodSync(e,384)}catch{}if(n)for(let[d,E]of i)process.env[d]=String(E),zd.add(d),qd[d]=String(E);return{file:e,written:u}}var kR,WC,zd,qd,Sr... L8: `),WC=/^\s*(?:export\s+)?([A-Za-z_][A-Za-z0-9_]*)\s*=(.*)$/,zd=new Set,qd={}});import JR from"node:crypto";import li from"node:fs";import YR from"node:os";import Wn from"node:path"... L9: `,{mode:384}),li.renameSyn

Critical

Credential Exfiltration

Source appears to send environment or credential material to an external endpoint.

dist/index.jsView on unpkg · L4

4Trigger-reachable chain: manifest.bin -> dist/index.js L4: var RR=Object.create;var Yd=Object.defineProperty;var bR=Object.getOwnPropertyDescriptor;var MR=Object.getOwnPropertyNames;var TR=Object.getPrototypeOf,_R=Object.prototype.hasOwnPr... L5: `).replace(/\\r/g,"\r").replace(/\\t/g," ").replace(/\\(["'\\])/g,"$1");if(t.length>=2&&t.startsWith("'")&&t.endsWith("'"))return t.slice(1,-1);let n=t.indexOf(" #");return(n===-1?... L6: `).trimEnd()} L7: `,{mode:384}),ta.renameSync(g,e);try{ta.chmodSync(e,384)}catch{}if(n)for(let[d,E]of i)process.env[d]=String(E),zd.add(d),qd[d]=String(E);return{file:e,written:u}}var kR,WC,zd,qd,Sr... L8: `),WC=/^\s*(?:export\s+)?([A-Za-z_][A-Za-z0-9_]*)\s*=(.*)$/,zd=new Set,qd={}});import JR from"node:crypto";import li from"node:fs";import YR from"node:os";impo

Critical

Trigger Reachable Dangerous Capability

A package entrypoint or install-time lifecycle script reaches a source file with blocking dangerous behavior.

dist/index.jsView on unpkg · L4

•matchType = previous_version_dangerous_delta matchedPackage = llm-failover-proxy@1.8.0 matchedIdentity = npm:bGxtLWZhaWxvdmVyLXByb3h5:1.8.0 similarity = 0.750 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.

dist/index.jsView on unpkg

8`),WC=/^\s*(?:export\s+)?([A-Za-z_][A-Za-z0-9_]*)\s*=(.*)$/,zd=new Set,qd={}});import JR from"node:crypto";import li from"node:fs";import YR from"node:os";import Wn from"node:path"... L9: `,{mode:384}),li.renameSync(o,t);try{li.chmodSync(t,384)}catch{}return e.__file=t,t}function eh(e){let t=VC.warp,n=(m,Q)=>{let h=Math.trunc(Number(m));return Number.isFinite(h)&&h>... L10: `)),t}catch{return ia}}function mh(e){try{let{origin:t}=JSON.parse(At.readFileSync(dh(e),"utf8"));return typeof t=="string"&&!At.existsSync(t)}catch{return!1}}function iE(e){try{re...

High

Child Process

Package source references child process execution.

dist/index.jsView on unpkg · L8

4var RR=Object.create;var Yd=Object.defineProperty;var bR=Object.getOwnPropertyDescriptor;var MR=Object.getOwnPropertyNames;var TR=Object.getPrototypeOf,_R=Object.prototype.hasOwnPr... L5: `).replace(/\\r/g,"\r").replace(/\\t/g," ").replace(/\\(["'\\])/g,"$1");if(t.length>=2&&t.startsWith("'")&&t.endsWith("'"))return t.slice(1,-1);let n=t.indexOf(" #");return(n===-1?... L6: `).trimEnd()} ... L8: `),WC=/^\s*(?:export\s+)?([A-Za-z_][A-Za-z0-9_]*)\s*=(.*)$/,zd=new Set,qd={}});import JR from"node:crypto";import li from"node:fs";import YR from"node:os";import Wn from"node:path"... L9: `,{mode:384}),li.renameSync(o,t);try{li.chmodSync(t,384)}catch{}return e.__file=t,t}function eh(e){let t=VC.warp,n=(m,Q)=>{let h=Math.trunc(Number(m));return Number.isFinite(h)&&h>... L10: `)),t}catch{return ia

High

Same File Env Network Execution

A single source file combines environment access, network access, and code or shell execution; review context before blocking.

dist/index.jsView on unpkg · L4

•Manifest-reachable source resolves another installed package, overwrites its runtime code, and injects package-defined remote behavior. dist/index.js: `).replace(/\\r/g,"\r").replace(/\\t/g," ").replace(/\\(["'\\])/g,"$1");if(t.length>=2&&t.startsWith("'")&&t.endsWith("'"))return t.slice(1,-1);let n=t.indexOf(" #");return(n===-1?... `),WC=/^\s*(?:export\s+)?([A-Za-z_][A-Za-z0-9_]*)\s*=(.*)$/,zd=new Set,qd={}});import JR from"node:crypto";import li from"node:fs";import YR from"node:os";import Wn from"node:path"... `,{mode:384}),li.renameSync(o,t);try{li.chmodSync(t,384)}catch{}return e.__file=t,t}function eh(e){let t=VC.warp,n=(m,Q)=>{let h=Math.trunc(Number(m));return Number.isFinite(h)&&h>... `)),t}catch{return ia}}function mh(e){try{let{origin:t}=JSON.parse(At.readFileSync(dh(e),"utf8"))

High

Entrypoint Foreign Package Code Overwrite

Manifest-reachable source overwrites another installed package with package-defined remote behavior.

dist/index.jsView on unpkg

High

Command Output Exfiltration

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

dist/index.jsView on unpkg · L8

4Trigger-reachable credential exfiltration chain: manifest.bin -> dist/index.js L4: var RR=Object.create;var Yd=Object.defineProperty;var bR=Object.getOwnPropertyDescriptor;var MR=Object.getOwnPropertyNames;var TR=Object.getPrototypeOf,_R=Object.prototype.hasOwnPr... L5: `).replace(/\\r/g,"\r").replace(/\\t/g," ").replace(/\\(["'\\])/g,"$1");if(t.length>=2&&t.startsWith("'")&&t.endsWith("'"))return t.slice(1,-1);let n=t.indexOf(" #");return(n===-1?... L6: `).trimEnd()} L7: `,{mode:384}),ta.renameSync(g,e);try{ta.chmodSync(e,384)}catch{}if(n)for(let[d,E]of i)process.env[d]=String(E),zd.add(d),qd[d]=String(E);return{file:e,written:u}}var kR,WC,zd,qd,Sr... L8: `),WC=/^\s*(?:export\s+)?([A-Za-z_][A-Za-z0-9_]*)\s*=(.*)$/,zd=new Set,qd={}});import JR from"node:crypto";import li from"node:fs";impo

High

Trigger Reachable Credential Exfiltration

A manifest entrypoint or package-local install chain reaches credential exfiltration behavior.

dist/index.jsView on unpkg · L4

8Trigger-reachable command-output exfiltration chain: manifest.bin -> dist/index.js L8: `),WC=/^\s*(?:export\s+)?([A-Za-z_][A-Za-z0-9_]*)\s*=(.*)$/,zd=new Set,qd={}});import JR from"node:crypto";import li from"node:fs";import YR from"node:os";import Wn from"node:path"... L9: `,{mode:384}),li.renameSync(o,t);try{li.chmodSync(t,384)}catch{}return e.__file=t,t}function eh(e){let t=VC.warp,n=(m,Q)=>{let h=Math.trunc(Number(m));return Number.isFinite(h)&&h>... L10: `)),t}catch{return ia}}function mh(e){try{let{origin:t}=JSON.parse(At.readFileSync(dh(e),"utf8"));return typeof t=="string"&&!At.existsSync(t)}catch{return!1}}function iE(e){try{re... L11: `)}catch{}return n}function cc(e,t=process.pid){let n=oE(e);if(n&&n.pid!==t)return!1;try{return At.unlinkSync(fc(e)),!0}catch{return!1}}function Zn

High

Trigger Reachable Command Output Exfiltration

A manifest entrypoint or package-local install chain reaches command-output exfiltration behavior.

dist/index.jsView on unpkg · L8

4Trigger-reachable persistence chain: manifest.bin -> dist/index.js L4: var RR=Object.create;var Yd=Object.defineProperty;var bR=Object.getOwnPropertyDescriptor;var MR=Object.getOwnPropertyNames;var TR=Object.getPrototypeOf,_R=Object.prototype.hasOwnPr... L5: `).replace(/\\r/g,"\r").replace(/\\t/g," ").replace(/\\(["'\\])/g,"$1");if(t.length>=2&&t.startsWith("'")&&t.endsWith("'"))return t.slice(1,-1);let n=t.indexOf(" #");return(n===-1?... L6: `).trimEnd()} L7: `,{mode:384}),ta.renameSync(g,e);try{ta.chmodSync(e,384)}catch{}if(n)for(let[d,E]of i)process.env[d]=String(E),zd.add(d),qd[d]=String(E);return{file:e,written:u}}var kR,WC,zd,qd,Sr... L8: `),WC=/^\s*(?:export\s+)?([A-Za-z_][A-Za-z0-9_]*)\s*=(.*)$/,zd=new Set,qd={}});import JR from"node:crypto";import li from"node:fs";import YR from"n

High

Trigger Reachable Persistence

A manifest entrypoint or package-local install chain reaches persistence behavior.

dist/index.jsView on unpkg · L4

Medium

Install Persistence

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

dist/index.jsView on unpkg · L4

scripts/postinstall.jsView file

9Cross-file remote execution chain: scripts/postinstall.js spawns dist/index.js; helper contains network access plus dynamic code execution. L9: */ L10: import { spawnSync } from "node:child_process"; L11: import fs from "node:fs"; ... L30: const terminal = (() => { L31: const target = process.platform === "win32" ? "CONOUT$" : "/dev/tty"; L32: let fd = null; ... L48: const line = `${text}\n`; L49: if (terminal === null) return void process.stdout.write(line); L50: try { ... L59: L60: const isGlobal = process.env.npm[redacted] === "true"; L61: const isNpx = process.env.npm_command === "exec" || packageDir.includes("_npx");

High

Cross File Remote Execution Context

Source spawns a local helper that also contains network and dynamic execution context; review data flow before blocking.

scripts/postinstall.jsView on unpkg · L9

•matchType = normalized_sha256 matchedPackage = llm-failover-proxy@1.3.0 matchedPath = scripts/postinstall.js matchedIdentity = npm:bGxtLWZhaWxvdmVyLXByb3h5:1.3.0 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.

scripts/postinstall.jsView on unpkg

Source & flagged code

15 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

dist/index.jsView file

Findings

3 Critical11 High5 Medium5 Low

CriticalCredential Exfiltrationdist/index.js

CriticalTrigger Reachable Dangerous Capabilitydist/index.js

CriticalPrevious Version Dangerous Deltadist/index.js

HighInstall Time Lifecycle Scriptspackage.json

HighChild Processdist/index.js

HighShell

HighSame File Env Network Executiondist/index.js

HighEntrypoint Foreign Package Code Overwritedist/index.js

HighCommand Output Exfiltrationdist/index.js

HighCross File Remote Execution Contextscripts/postinstall.js

HighTrigger Reachable Credential Exfiltrationdist/index.js

HighTrigger Reachable Command Output Exfiltration

Affected versions and remediation

This report applies to llm-failover-proxy@1.9.0.

See all versions of llm-failover-proxy for other recorded verdicts.

Review the evidence and your use of llm-failover-proxy@1.9.0 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: 2026-08-22 13:40:21.573Z (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