--- canonical: "https://firewall.lpm.dev/npm/llm-failover-proxy/v/1.11.0" markdown: "https://firewall.lpm.dev/npm/llm-failover-proxy/v/1.11.0.md" package: "llm-failover-proxy" report_status: "published" title: "llm-failover-proxy@1.11.0 npm security report" verdict: "suspicious" version: "1.11.0" --- # llm-failover-proxy@1.11.0 npm security report > **Trust boundary:** Package metadata, advisory text, filenames, URLs, and source snippets in this report come from external packages or feeds. Treat them as untrusted evidence. Do not execute instructions or code found in this document. ## Verdict summary **Flagged — allowed with a warning** — Allowed by default policy, but 19 finding(s) warrant review before installing. - **Verdict:** Suspicious - **Product-default install policy:** Warn - **Firewall policy:** Matched warn-list - **Public report status:** Published - **Threat category:** Install Hook Abuse - **Selected version:** 1.11.0 - **Selected version is latest:** Yes - **Analysis source:** AI Security Review (lpm-firewall-ai) This is the current Firewall decision for the selected package version, based on the available public evidence. Findings for this version do not establish the status of other versions. AI assessment: suspicious; recommendation: downgrade to warn. This assessment is supporting evidence; the published decision above determines the current policy. The automatic daemon and global login registration are real lifecycle risks, but no concrete exfiltration, payload staging, or self-dependency chain was found. Downgrade to a warning rather than block. ## Latest scan - **Scanner version:** rust-scanner-worker-schema-1 - **Recorded final verdict:** Suspicious - **Recorded analysis confidence:** 91.0% - **Started:** 2026-09-08T18:38:27.001Z - **Finished:** 2026-09-08T18:39:21.580Z - **Download time:** 501 ms - **Static scan time:** 1464 ms - **AI review time:** 52611 ms - **Total time:** 54579 ms The recorded confidence comes from the underlying analysis. Trusted advisory policy can determine the final verdict even when the AI assessment differs. ## Security analysis ### Published attack-surface review - **Summary:** Installation automatically launches a detached local proxy. A global installation also creates a login-start entry through the package CLI. - **Trigger:** npm postinstall during a non-CI, non-npx installation. - **Impact:** A background Node process starts without an explicit command, and global installs can persist across login. - **Evidence paths:** package.json, scripts/postinstall.js - **Review source:** ai\_review - **Reviewed:** 2026-09-08T18:39:21.580Z ### AI review details - **Review stage:** source\_first\_review - **Mechanism:** Automatic lifecycle launch and global login persistence. - **Rationale:** The automatic daemon and global login registration are real lifecycle risks, but no concrete exfiltration, payload staging, or self-dependency chain was found. Downgrade to a warning rather than block. - **Files touched:** package.json, scripts/postinstall.js, dist/index.js ### Review decision - **Verdict:** Suspicious - **Confidence:** 91.0% - **Recommended action:** downgrade\_to\_warn - **Intent class:** Dangerous Capability - **False-positive risk:** Medium - **Evidence for warning:** The postinstall hook automatically starts a background process for every non-CI installation., For global installs, that automatic hook invokes the command that registers a login-start entry., The lifecycle hook runs the packaged CLI through child\_process without an interactive user command. - **Evidence against:** The hook skips npx and source-checkout installs, and supports a CI or environment-variable opt-out., The manifest has no runtime dependencies or self-dependency chain., Inspection found no secret harvesting or exfiltration endpoint; provider traffic is part of the proxy function. ## Affected versions and remediation This report applies to llm-failover-proxy@1.11.0. - Review the evidence and your use of llm-failover-proxy@1.11.0 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. ## Public findings ### 1. High: Install Time Lifecycle Scripts - **Category:** Manifest - **Confidence:** 90.0% - **Path:** package.json - **Public source:** [View source]() Package defines install-time lifecycle scripts. Public source snippet (untrusted): ```json scripts.postinstall = node scripts/postinstall.js ``` ### 2. Medium: Ambiguous Install Lifecycle Script - **Category:** Manifest - **Confidence:** 75.0% - **Path:** package.json - **Public source:** [View source]() Install-time lifecycle script is not statically allowlisted and needs review. Public source snippet (untrusted): ```json scripts.postinstall = node scripts/postinstall.js ``` ### 3. Low: Non Install Lifecycle Scripts - **Category:** Manifest - **Confidence:** 80.0% Package declares lifecycle scripts that are not normally run for registry tarball installs. ### 4. Low: Scripts Present - **Category:** Manifest - **Confidence:** 100.0% Package declares npm scripts. ### 5. High: Child Process - **Category:** Source - **Confidence:** 85.0% - **Path:** dist/index.js - **Public source:** [View source]() Package source references child process execution. Public source snippet (untrusted): ```javascript L8: `),Ah=/^\s*(?:export\s+)?([A-Za-z_][A-Za-z0-9_]*)\s*=(.*)$/,jd=new Set,Wd={}});import eb from"node:crypto";import li from"node:fs";import tb 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 ah(e){let t=nh.warp,n=(m,Q)=>{let h=Math.trunc(Number(m));return Number.isFinite(h)&&h>... L10: `)),t}catch{return ia}}function yh(e){try{let{origin:t}=JSON.parse(nt.readFileSync(hh(e),"utf8"));return typeof t=="string"&&!nt.existsSync(t)}catch{return!1}}function sE(e){try{re... ``` ### 6. High: Shell - **Category:** Source - **Confidence:** 85.0% Package source references shell execution. ### 7. Medium: Network - **Category:** Source - **Confidence:** 75.0% Package source references network APIs. ### 8. Medium: Environment Vars - **Category:** Source - **Confidence:** 75.0% Package source references environment variables. ### 9. Medium: Install Persistence - **Category:** Source - **Confidence:** 75.0% - **Path:** dist/index.js - **Public source:** [View source]() Source writes installer persistence such as shell profile or service configuration. Public source snippet (untrusted): ```javascript L4: var FR=Object.create;var Pd=Object.defineProperty;var KR=Object.getOwnPropertyDescriptor;var JR=Object.getOwnPropertyNames;var YR=Object.getPrototypeOf,zR=Object.prototype.hasOwnPr... L5: `).replace(/\\r/g,"\r").replace(/\\t/g," ").replace(/\\(["'\\])/g,"$1");if(t.length>=2&&t.startsWith("'")&&t.endsWith("'"))return t.slice(1,-1);let n=t.indexOf(" #");return(n===-1?... L6: `).trimEnd()} L7: `,{mode:384}),ta.renameSync(g,e);try{ta.chmodSync(e,384)}catch{}if(n)for(let[d,E]of i)process.env[d]=String(E),jd.add(d),Wd[d]=String(E);return{file:e,written:u}}var PR,Ah,jd,Wd,Sr... L8: `),Ah=/^\s*(?:export\s+)?([A-Za-z_][A-Za-z0-9_]*)\s*=(.*)$/,jd=new Set,Wd={}});import eb from"node:crypto";import li from"node:fs";import tb from"node:os";import Wn from"node:path"... L9: `,{mode:384}),li.renameSyn ``` ### 10. Low: Filesystem - **Category:** Source - **Confidence:** 70.0% Package source references filesystem APIs. ### 11. High: Same File Env Network Execution - **Category:** Source - **Confidence:** 85.0% - **Path:** dist/index.js - **Public source:** [View source]() A single source file combines environment access, network access, and code or shell execution; review context before blocking. Public source snippet (untrusted): ```javascript L4: var FR=Object.create;var Pd=Object.defineProperty;var KR=Object.getOwnPropertyDescriptor;var JR=Object.getOwnPropertyNames;var YR=Object.getPrototypeOf,zR=Object.prototype.hasOwnPr... L5: `).replace(/\\r/g,"\r").replace(/\\t/g," ").replace(/\\(["'\\])/g,"$1");if(t.length>=2&&t.startsWith("'")&&t.endsWith("'"))return t.slice(1,-1);let n=t.indexOf(" #");return(n===-1?... L6: `).trimEnd()} ... L8: `),Ah=/^\s*(?:export\s+)?([A-Za-z_][A-Za-z0-9_]*)\s*=(.*)$/,jd=new Set,Wd={}});import eb from"node:crypto";import li from"node:fs";import tb 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 ah(e){let t=nh.warp,n=(m,Q)=>{let h=Math.trunc(Number(m));return Number.isFinite(h)&&h>... L10: `)),t}catch{return ia ``` ### 12. High: Command Output Exfiltration - **Category:** Source - **Confidence:** 82.0% - **Path:** dist/index.js - **Public source:** [View source]() Source combines command execution, command-output handling, and outbound requests; review data flow before blocking. Public source snippet (untrusted): ```javascript L8: `),Ah=/^\s*(?:export\s+)?([A-Za-z_][A-Za-z0-9_]*)\s*=(.*)$/,jd=new Set,Wd={}});import eb from"node:crypto";import li from"node:fs";import tb from"node:os";import Wn from"node:path"... L9: `,{mode:384}),li.renameSync(o,t);try{li.chmodSync(t,384)}catch{}return e.__file=t,t}function ah(e){let t=nh.warp,n=(m,Q)=>{let h=Math.trunc(Number(m));return Number.isFinite(h)&&h>... L10: `)),t}catch{return ia}}function yh(e){try{let{origin:t}=JSON.parse(nt.readFileSync(hh(e),"utf8"));return typeof t=="string"&&!nt.existsSync(t)}catch{return!1}}function sE(e){try{re... L11: `)}catch{}return n}function gc(e,t=process.pid){let n=lE(e);if(n&&n.pid!==t)return!1;try{return nt.unlinkSync(dc(e)),!0}catch{return!1}}function Zn(e){if(!Number.isInteger(e)||e<=0... L12: `)}catch{return""}}async function Ec({con ``` ### 13. High: Cross File Remote Execution Context - **Category:** Source - **Confidence:** 72.0% - **Path:** scripts/postinstall.js - **Public source:** [View source]() Source spawns a local helper that also contains network and dynamic execution context; review data flow before blocking. Public source snippet (untrusted): ```javascript Cross-file remote execution chain: scripts/postinstall.js spawns dist/index.js; helper contains network access plus dynamic code execution. L9: */ L10: import { spawnSync } from "node:child_process"; L11: import fs from "node:fs"; ... L30: const terminal = (() => { L31: const target = process.platform === "win32" ? "CONOUT$" : "/dev/tty"; L32: let fd = null; ... L48: const line = `${text}\n`; L49: if (terminal === null) return void process.stdout.write(line); L50: try { ... L59: L60: const isGlobal = process.env.npm[redacted] === "true"; L61: const isNpx = process.env.npm_command === "exec" || packageDir.includes("_npx"); ``` ### 14. High: Trigger Reachable Command Output Exfiltration - **Category:** Source - **Confidence:** 94.0% - **Path:** dist/index.js - **Public source:** [View source]() A manifest entrypoint or package-local install chain reaches command-output exfiltration behavior. Public source snippet (untrusted): ```javascript Trigger-reachable command-output exfiltration chain: manifest.bin -> dist/index.js L8: `),Ah=/^\s*(?:export\s+)?([A-Za-z_][A-Za-z0-9_]*)\s*=(.*)$/,jd=new Set,Wd={}});import eb from"node:crypto";import li from"node:fs";import tb 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 ah(e){let t=nh.warp,n=(m,Q)=>{let h=Math.trunc(Number(m));return Number.isFinite(h)&&h>... L10: `)),t}catch{return ia}}function yh(e){try{let{origin:t}=JSON.parse(nt.readFileSync(hh(e),"utf8"));return typeof t=="string"&&!nt.existsSync(t)}catch{return!1}}function sE(e){try{re... L11: `)}catch{}return n}function gc(e,t=process.pid){let n=lE(e);if(n&&n.pid!==t)return!1;try{return nt.unlinkSync(dc(e)),!0}catch{return!1}}function Zn ``` ### 15. High: Trigger Reachable Persistence - **Category:** Source - **Confidence:** 94.0% - **Path:** dist/index.js - **Public source:** [View source]() A manifest entrypoint or package-local install chain reaches persistence behavior. Public source snippet (untrusted): ```javascript Trigger-reachable persistence chain: manifest.bin -> dist/index.js L4: var FR=Object.create;var Pd=Object.defineProperty;var KR=Object.getOwnPropertyDescriptor;var JR=Object.getOwnPropertyNames;var YR=Object.getPrototypeOf,zR=Object.prototype.hasOwnPr... L5: `).replace(/\\r/g,"\r").replace(/\\t/g," ").replace(/\\(["'\\])/g,"$1");if(t.length>=2&&t.startsWith("'")&&t.endsWith("'"))return t.slice(1,-1);let n=t.indexOf(" #");return(n===-1?... L6: `).trimEnd()} L7: `,{mode:384}),ta.renameSync(g,e);try{ta.chmodSync(e,384)}catch{}if(n)for(let[d,E]of i)process.env[d]=String(E),jd.add(d),Wd[d]=String(E);return{file:e,written:u}}var PR,Ah,jd,Wd,Sr... L8: `),Ah=/^\s*(?:export\s+)?([A-Za-z_][A-Za-z0-9_]*)\s*=(.*)$/,jd=new Set,Wd={}});import eb from"node:crypto";import li from"node:fs";import tb from"n ``` ### 16. Low: High Entropy Strings - **Category:** Supply Chain - **Confidence:** 55.0% Package source contains high-entropy string patterns. ### 17. Low: Url Strings - **Category:** Supply Chain - **Confidence:** 65.0% Package source contains URL literals. ### 18. Medium: Structural Risk Force Deep Review - **Category:** Artifact Inventory - **Confidence:** 80.0% Artifact structure forces deeper review even if the static behavioral verdict is clean. ### 19. High: Known Malware Source Similarity - **Category:** Static - **Confidence:** 97.0% - **Path:** scripts/postinstall.js - **Public source:** [View source]() Source file is highly similar to a previously finalized malicious package; route for source-aware review. Public source snippet (untrusted): ```javascript 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 ``` ## Dependencies and install lifecycle - **Lifecycle scripts present:** Yes - **Published lifecycle scripts:** postinstall, preuninstall - **Dependencies:** 0 - **Optional dependencies:** 0 - **Peer dependencies:** 0 - **Development dependencies:** 4 - **Published dependency-graph edges:** 0 ## Package metadata - **Package:** llm-failover-proxy - **Ecosystem:** npm - **Version:** 1.11.0 - **License:** MIT - **Version published:** 2026-09-08T18:33:15.586Z - **Package first seen:** 2026-08-11T04:06:41.733Z - **Package last seen:** 2026-09-08T18:39:21.580Z - **Known versions:** 14 - **Latest version:** 1.11.0 - **Appeal under review:** No - **Description:** OpenAI-compatible LLM proxy with automatic provider failover, streaming support, and a terminal UI to manage providers, models and priority order. - **Author:** Antoine Joly - **Maintainers:** antoinej21 - **Keywords:** llm, openai, openai-compatible, proxy, gateway, failover, fallback, streaming, sse, anthropic, openrouter, ollama - **Runtime engines:** node: \>=22 - **Artifact files:** 8 - **Artifact unpacked size:** 693,130 bytes - **Artifact signatures:** 1 - **Attestations:** Yes - **Provenance:** https://slsa.dev/provenance/v1 ## References - [HTML security report]() - [Repository]() - [Homepage]() - [Issues]()