registry / @yeaft/webchat-agent / 1.0.631

@yeaft/webchat-agent@1.0.631

⚠ Under review

Remote worker agent for Yeaft Web Code Agent — connects the native Yeaft engine, CLI providers, and workbench tools

Static Scan Results

scanned 10d ago · by rust-scanner

Static analysis completed at 97.0% confidence. No malicious behavior was detected; 23 low-signal pattern(s) were surfaced and cleared.

Static reason

One or more suspicious static signals were detected.; source matched previously finalized malicious package; routed for review; previous stored version diff introduced dangerous source

Decision evidence

public snapshot

Behavioral surface

Source

ChildProcessCryptoDynamicRequireEnvironmentVarsEvalFilesystemNetworkShellWebSocket

Supply chain

HighEntropyStringsMinifiedPossibleObfuscationTelemetryUrlStrings

ManifestNo manifest risk signals triggered.

scanned 447 file(s), 13.0 MB of source, external domains: 127.0.0.1, 169.254.169.254, accounts.google.com, aka.ms, api.anthropic.com, api.deepseek.com, api.github.com, api.githubcopilot.com, api.openai.com, api.tavily.com, api.weixin.qq.com, azuread.github.io, chevrotain.io, docs.microsoft.com, docs.oasis-open.org, duckduckgo.com, en.wikipedia.org, generativelanguage.googleapis.com, github.com, html.duckduckgo.com, huggingface.co, langium.org, login.chinacloudapi.cn, login.microsoftonline.com, login.microsoftonline.de, login.microsoftonline.us, login.partner.microsoftonline.cn, login.windows-ppe.net, models.dev, nodejs.org, oauth2.googleapis.com, open.weixin.qq.com, openapi.alipay.com, openauth.alipay.com, openoffice.org, pkg.yeaft.com, purl.oclc.org, purl.org, schemas.microsoft.com, schemas.openxmlformats.org, sheetjs.com, sheetjs.openxmlformats.org, storage.googleapis.com, stuk.github.io, tavily.com, tools.ietf.org, view.officeapps.live.com, vuejs.org, www.apple.com, www.bing.com

Source & flagged code

15 flagged

windows-upgrade-runner.jsView file

1import { appendFileSync, mkdirSync, readFileSync, rmSync, writeFileSync } from 'node:fs'; L2: import { spawn } from 'node:child_process'; L3: import { dirname } from 'node:path';

High

Child Process

Package source references child process execution.

windows-upgrade-runner.jsView on unpkg · L1

connection/upgrade.jsView file

Lines 1-62javascript

1import { execFile, execFileSync, spawn } from 'child_process';

2import { writeFileSync, mkdirSync, existsSync } from 'fs';

3import { fileURLToPath } from 'url';

4import { join, dirname } from 'path';

5import { platform, homedir } from 'os';

6import ctx from '../context.js';

7import { getConfigDir, getServiceName, getPm2AppName, getLaunchdPlistPath, DEFAULT_INSTANCE_ID } from '../service.js';

8import {

9 buildUpgradeInstallCommand,

10 buildUpgradeMetadataArgs,

11 buildContainerImageUpgradeMessage,

12 CONTAINER_AGENT_CAPABILITY,

13 CONTAINER_IMAGE_UPGRADE_REASON,

14 isContainerAgentRuntime,

15 createWindowsUpgradeRun,

16 launchWindowsUpgradeScript,

17 prepareWindowsUpgradeRunner,

18 releaseWindowsUpgradeLock,

19 resolveWindowsNpmCliPath,

20 resolveWindowsPm2CliPath,

21} from '../upgrade-command.js';

22import { sendToServer } from './buffer.js';

23import { stopAgentHeartbeat } from './heartbeat.js';

25/**

26 * Resolve the local service instance id for this running agent. Each agent

27 * process is pinned to one instance (set in index.js from

28 * YEAFT_AGENT_INSTANCE / config), so the upgrade flow must target THAT

29 * instance's service unit — not the bare `yeaft-agent` default. Without this,

30 * a named instance (e.g. `server-e7a9eb`) installs the new package but its

31 * systemd unit `yeaft-agent@server-e7a9eb` is never restarted, leaving the

32 * agent permanently offline after a UI-triggered upgrade.

33 */

34export function resolveInstanceId() {

35 return ctx.CONFIG?.instanceId || process.env.YEAFT_AGENT_INSTANCE || DEFAULT_INSTANCE_ID;

36}

38// Derive absolute paths for npm/pm2 from current node executable.

39// In launchd/systemd environments, PATH may not include nvm/node dirs,

40// but process.execPath always points to the running node binary.

41const nodeBinDir = dirname(process.execPath);

42const isWin = platform() === 'win32';

43// Windows: use bare 'npm'/'pm2' + shell:true — cmd.exe finds them via PATH.

44// This was the working pattern before ce58bbc. Absolute paths break when

Medium

Install Persistence

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

connection/upgrade.jsView on unpkg · L1

High

Shell

Package source references shell execution.

connection/upgrade.jsView on unpkg · L42

45// the path contains spaces (e.g., "C:\Program Files\nodejs\npm.cmd").

46// macOS/Linux: use absolute path — launchd/systemd have minimal PATH.

47const npmPath = isWin ? 'npm' : join(nodeBinDir, 'npm');

48const pm2Path = isWin ? 'pm2' : join(nodeBinDir, 'pm2');

49const shellOpt = isWin ? { shell: true, windowsHide: true } : {};

51// Ensure PATH includes nodeBinDir so that `#!/usr/bin/env node` shebangs

52// can locate node in launchd/systemd environments with minimal PATH.

53const currentPath = process.env.PATH || '/usr/bin:/bin:/usr/sbin:/sbin';

54const safePath = currentPath.includes(nodeBinDir) ? currentPath : `${nodeBinDir}:${currentPath}`;

55const safeEnv = { ...process.env, PATH: safePath };

57/** Return true only when `latestVersion` is semantically newer. */

58export function isUpgradeAvailable(currentVersion, latestVersion) {

59 const current = parseSemver(currentVersion);

60 const latest = parseSemver(latestVersion);

61 if (!current || !latest) return currentVersion !== latestVersion;

62 return cmpTuple(latest, current) > 0;

1Trigger-reachable persistence chain: scripts.start -> index.js -> connection.js -> connection/index.js -> connection/upgrade.js L1: import { execFile, execFileSync, spawn } from 'child_process'; L2: import { writeFileSync, mkdirSync, existsSync } from 'fs'; ... L34: export function resolveInstanceId() { L35: return ctx.CONFIG?.instanceId || process.env.YEAFT_AGENT_INSTANCE || DEFAULT_INSTANCE_ID; L36: } ... L42: const isWin = platform() === 'win32'; L43: // Windows: use bare 'npm'/'pm2' + shell:true — cmd.exe finds them via PATH. L44: // This was the working pattern before ce58bbc. Absolute paths break when ... L65: // Shared cleanup logic for restart/upgrade L66: function cleanupAndExit(exitCode) { L67: setTimeout(async () => { ... L421: const serviceName = getServiceName(instanceId);

High

Trigger Reachable Persistence

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

connection/upgrade.jsView on unpkg · L1

local-runtime/web/jszip.min.jsView file

Lines 1-13javascript

1/*!

3JSZip v3.10.1 - A JavaScript class for generating and reading zip files

4<http://stuartk.com/jszip>

7Dual licenced under the MIT license or GPLv3. See https://raw.github.com/Stuk/jszip/main/LICENSE.markdown.

9JSZip uses the library pako released under the MIT license :

10https://github.com/nodeca/pako/blob/main/LICENSE

11*/

local-runtime/web/docx-preview.min.jsView file

Lines 1-3javascript

1!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?t(exports,require("jszip")):"function"==typeof define

yeaft/tools/js-repl.jsView file

Lines 1-21javascript

1/**

2 * js-repl.js — JavaScript REPL for evaluating expressions.

Medium

Unsafe Vm Context

Package source executes code through a VM context API.

yeaft/tools/js-repl.jsView on unpkg · L1

3 *

4 * Runs JavaScript code in a persistent VM context, allowing

5 * state to be maintained across calls.

6 *

7 * task-333b: merged the former `JsReplReset` tool into this one as a

8 * `reset: true` parameter. A single tool with a reset flag eliminates a

local-runtime/server/browser-runtime-routes.jsView file

Lines 3-43javascript

3import { agents, webClients } from './context.js';

5const MAX_ROUTES = 2048;

6const MAX_PEERS = 4096;

local-run.jsView file

Lines 1-21javascript

1import { spawn } from 'child_process';

2import { existsSync } from 'fs';

3import { homedir } from 'os';

4import { createServer } from 'net';

local-runtime/web/installers/install.shView file

•path = local-runtime/web/installers/install.sh kind = build_helper sizeBytes = 8364 magicHex = [redacted]

Medium

Ships Build Helper

Package ships non-JavaScript build or shell helper files.

local-runtime/web/installers/install.shView on unpkg

local-runtime/web/xlsx.min.js.gzView file

•path = local-runtime/web/xlsx.min.js.gz kind = high_entropy_blob sizeBytes = 335014 magicHex = [redacted]

High

Ships High Entropy Blob

Package ships high-entropy non-source blobs.

local-runtime/web/xlsx.min.js.gzView on unpkg

•path = local-runtime/web/xlsx.min.js.gz kind = compressed_blob sizeBytes = 335014 magicHex = [redacted]

Medium

Ships Compressed Blob

Package ships compressed or archive-like blobs.

local-runtime/web/xlsx.min.js.gzView on unpkg

container-cli.js#virtual:normalized: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.

container-cli.js#virtual:normalized:round1View on unpkg

local-runtime/web/mermaid.min.jsView file

•matchType = normalized_sha256 matchedPackage = bmad-speckit-sdd-flow@3.0.0 matchedPath = node_modules/bmad-speckit/_bmad/skills/requirements-contract-[redacted].min.js matchedIdentity = npm:Ym1hZC1zcGVja2l0LXNkZC1mbG93:3.0.0 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.

local-runtime/web/mermaid.min.jsView on unpkg

yeaft/person/local-memory.jsView file

•matchType = previous_version_dangerous_delta matchedPackage = @yeaft/webchat-agent@1.0.532 matchedIdentity = npm:QHllYWZ0L3dlYmNoYXQtYWdlbnQ:1.0.532 similarity = 0.733 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.

yeaft/person/local-memory.jsView on unpkg

Source & flagged code

15 flagged · loading source

windows-upgrade-runner.jsView file

1import { appendFileSync, mkdirSync, readFileSync, rmSync, writeFileSync } from 'node:fs'; L2: import { spawn } from 'node:child_process'; L3: import { dirname } from 'node:path';

High

Child Process

Package source references child process execution.

windows-upgrade-runner.jsView on unpkg · L1

connection/upgrade.jsView file

42const isWin = platform() === 'win32'; L43: // Windows: use bare 'npm'/'pm2' + shell:true — cmd.exe finds them via PATH. L44: // This was the working pattern before ce58bbc. Absolute paths break when

High

Shell

Package source references shell execution.

connection/upgrade.jsView on unpkg · L42

Findings

8 High8 Medium7 Low

HighChild Processwindows-upgrade-runner.js

HighShellconnection/upgrade.js

HighSame File Env Network Executionlocal-run.js

HighTrigger Reachable Persistenceconnection/upgrade.js

HighShips High Entropy Bloblocal-runtime/web/xlsx.min.js.gz

HighSemantic Analysis Limitedcontainer-cli.js#virtual:normalized:round1

HighKnown Malware Source Similaritylocal-runtime/web/mermaid.min.js

HighPrevious Version Dangerous Deltayeaft/person/local-memory.js

MediumDynamic Requirelocal-runtime/web/docx-preview.min.js

MediumUnsafe Vm Contextyeaft/tools/js-repl.js

MediumNetwork

MediumEnvironment Vars

Affected versions and remediation

This report applies to @yeaft/webchat-agent@1.0.631.

See all versions of @yeaft/webchat-agent for other recorded verdicts.

Review the evidence and your use of @yeaft/webchat-agent@1.0.631 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: 2026-10-13 10:01:19.201Z (UTC).

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