registry / u1s1-cli / 1.13.1

u1s1-cli@1.13.1

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AI Security Review

scanned 13d ago · by lpm-firewall-ai

Source inspection found a postinstall patch targeting the package's pi dependency and runtime code that configures its provider credential while stripping secrets from child processes. The scanner's credential-redirection claim was not supported by the inspected source.

Static reason

One or more suspicious static signals were detected.; source matched previously finalized malicious package; routed for review

Trigger

Installation runs the postinstall patch script; credential setup and child-process guarding occur when the CLI starts.

Impact

The inspected behavior supports dependency setup and credential isolation; no credential redirection or other concrete attack was established.

Mechanism

The patch script performs targeted source replacements in the pi dependency. Runtime settings associate the API key with the u1s1 provider, and the child-process guard removes secret environment variables from spawned processes.

AI rationale

Evidence

package.jsonscripts/patch-pi.jsdist/index.jsdist/agent-setup.jsdist/secret-env.js

Decision evidence

public snapshot

AI called this Clean at 91.0% confidence as Benign with low false-positive risk.

Evidence for AI clean decision

The postinstall hook runs a patch script that targets the package's pi coding-agent dependency.
The CLI places its configured API key in the process environment for its configured service flow.
Generated provider settings reference that key for the u1s1 provider and use the configured base URL.
The CLI installs a child-process guard that strips secret environment variables.
The patch script applies text replacements to the targeted pi dependency.

Evidence against

Behavioral surface

Source

ChildProcessCryptoDynamicRequireEnvironmentVarsEvalFilesystemNetworkShell

Supply chain

HighEntropyStringsUrlStrings

ManifestNo manifest risk signals triggered.

scanned 52 file(s), 612 KB of source, external domains: 127.0.0.1, api.u1s1.io, api.u1s1app.com, mcp.exa.ai, registry.npmjs.org, u1s1.dev, u1s1app.com, www.w3.org

Source & flagged code

8 flagged

package.jsonView file

Lines 10-50json

10 "./embed": {

11 "types": "./dist/embed.d.ts",

12 "default": "./dist/embed.js"

13 },

14 "./package.json": "./package.json"

15 },

16 "files": [

17 "dist",

18 "bench",

19 "scripts"

20 ],

21 "engines": {

22 "node": ">=22.19.0"

23 },

24 "scripts": {

25 "build": "tsc",

26 "dev": "tsx src/index.ts",

27 "typecheck": "tsc --noEmit",

28 "prepublishOnly": "npm run build && npm test",

29 "test": "U1S1_LANG=zh tsx --test test/*.test.ts && U1S1_LANG=zh node scripts/render-regression.mjs",

30 "postinstall": "node scripts/patch-pi.js",

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg · L30

31 "package": "bash ../../scripts/package.sh",

32 "upload-release": "bash ../../scripts/upload-release.sh",

33 "release": "npm run package && npm run upload-release"

34 },

35 "keywords": [

36 "ai",

37 "cli",

38 "coding-agent",

39 "deepseek",

40 "u1s1"

41 ],

42 "license": "MIT",

43 "homepage": "https://u1s1app.com",

44 "dependencies": {

45 "@earendil-works/pi-coding-agent": "1.0.0",

46 "@earendil-works/pi-tui": "1.0.0",

47 "typebox": "1.3.7"

48 },

49 "devDependencies": {

50 "@types/node": "^22.20.1",

dist/workflow/runner.jsView file

Lines 1-21javascript

1import { createHash } from "node:crypto";

2import { execFileSync } from "node:child_process";

3import { appendFileSync, existsSync, mkdirSync, readFileSync, rmSync, writeFileSync } from "node:fs";

Medium

Unsafe Vm Context

Package source executes code through a VM context API.

dist/workflow/runner.jsView on unpkg · L1

dist/update.jsView file

Lines 1-31javascript

1import { execFileSync, spawnSync } from "node:child_process";

2import { createHash } from "node:crypto";

3import { mkdtempSync, readFileSync, writeFileSync } from "node:fs";

4import { createRequire } from "node:module";

dist/index.jsView file

•Manifest-reachable source captures an API credential, sends it to a fixed unofficial gateway, and persists that redirection in agent or shell configuration. dist/index.js: import { writeFileSync } from "node:fs"; writeFileSync(tty, "\x1b[>4;2m"); const officialCfg = { ...cfg, baseUrl: signing.baseUrl, apiKey: signing.localKey }; process.env["U1S1_SIGNING_PROXY_URL"] = officialCfg.baseUrl; baseUrl: officialCfg.baseUrl, console.log(` Server ${cfg.baseUrl}`); console.log(` 服务器 ${cfg.baseUrl}`); const resp = await authorizedFetch(current, `${current.baseUrl}/device`, { method: "DELETE" }).catch(() => null);

High

Credential Redirect Persistence

Manifest-reachable source sends a prompted API credential to a fixed unofficial gateway and persists the redirection.

dist/index.jsView on unpkg

dist/agent-setup.js#virtual:normalized:round1View file

•stage = ast_semantic_analysis; reason = ast_parse_error; limitedFiles = 3

High

Semantic Analysis Limited

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

dist/agent-setup.js#virtual:normalized:round1View on unpkg

dist/secret-env.jsView file

•matchType = normalized_sha256 matchedPackage = u1s1-cli@1.8.1 matchedPath = dist/secret-env.js matchedIdentity = npm:dTFzMS1jbGk:1.8.1 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.

dist/secret-env.jsView on unpkg

Source & flagged code

8 flagged · loading source

package.jsonView file

•scripts.postinstall = node scripts/patch-pi.js

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg

dist/workflow/runner.jsView file

1import { createHash } from "node:crypto"; L2: import { execFileSync } from "node:child_process"; L3: import { appendFileSync, existsSync, mkdirSync, readFileSync, rmSync, writeFileSync } from "node:fs"; ... L30: try { L31: const e = JSON.parse(line); L32: if (typeof e.key === "string") ... L83: [/\bglobalThis\b/, "globalThis"], L84: [/\bfetch\s*\(/, "fetch()"], L85: [/\beval\s*\(/, "eval()"], ... L186: projectTrusted: opts.projectTrusted, L187: trustCwd: process.cwd(), L188: noTools: o.noTools === true,

Medium

Unsafe Vm Context

Package source executes code through a VM context API.

dist/workflow/runner.jsView on unpkg · L1

84[/\bfetch\s*\(/, "fetch()"], L85: [/\beval\s*\(/, "eval()"], L86: [/\bFunction\s*\(/, "new Function()"],

Low

Findings

4 High5 Medium7 Low

HighInstall Time Lifecycle Scriptspackage.json

HighCredential Redirect Persistencedist/index.js

HighSemantic Analysis Limiteddist/agent-setup.js#virtual:normalized:round1

HighKnown Malware Source Similaritydist/secret-env.js

MediumDynamic Requiredist/update.js

MediumUnsafe Vm Contextdist/workflow/runner.js

MediumNetwork

MediumEnvironment Vars

MediumStructural Risk Force Deep Review

LowNon Install Lifecycle Scripts

LowScripts Present

LowEvaldist/workflow/runner.js

LowWeak Cryptodist/workflow/runner.js

LowFilesystem

Affected versions and remediation

This report applies to u1s1-cli@1.13.1.

See all versions of u1s1-cli for other recorded verdicts.

Review the evidence and your use of u1s1-cli@1.13.1 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: 2026-10-09 21:58:37.233Z (UTC).

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