registry / @yeaft/webchat-agent / 1.0.527

@yeaft/webchat-agent@1.0.527

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

Static Scan Results

scanned 1mo ago · by rust-scanner

Static analysis flagged 22 finding(s) at 97.0% confidence. This version is warn-only unless an AI or security-team review confirms malicious behavior.

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

HighEntropyStringsMinifiedPossibleObfuscationUrlStrings

ManifestNo manifest risk signals triggered.

scanned 399 file(s), 9.52 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, docs.microsoft.com, docs.oasis-open.org, duckduckgo.com, en.wikipedia.org, engelschall.com, generativelanguage.googleapis.com, github.com, html.duckduckgo.com, jquery.org, lodash.com, 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, openjsf.org, openoffice.org, opensource.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, tldrlegal.com, tools.ietf.org, underscorejs.org

Oversized source lightweight scan

local-runtime/web/mermaid.min.js2.75 MB file, sampled 256 KB

HighEntropyStrings

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

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

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

1import { 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);

Medium

Install Persistence

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

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

1/** L2: * 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

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

1import { spawn } from 'child_process'; L2: import { existsSync } from 'fs'; L3: import { homedir } from 'os'; L4: import { createServer } from 'net'; L5: import { dirname, join } from 'path'; ... L12: L13: export function parseLocalArgs(args, env = process.env) { L14: const options = {

High

Same File Env Network Execution

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

local-run.jsView on unpkg · L1

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

•path = local-runtime/web/installers/install.sh kind = build_helper sizeBytes = 8203 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 = 11

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@2.2.1 matchedPath = node_modules/bmad-speckit/_bmad/skills/requirements-contract-[redacted].min.js matchedIdentity = npm:Ym1hZC1zcGVja2l0LXNkZC1mbG93:2.2.1 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.

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

repo-workflow.jsView file

•matchType = previous_version_dangerous_delta matchedPackage = @yeaft/webchat-agent@1.0.526 matchedIdentity = npm:QHllYWZ0L3dlYmNoYXQtYWdlbnQ:1.0.526 similarity = 0.992 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.

repo-workflow.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

High

Shell

Package source references shell execution.

connection/upgrade.jsView on unpkg · L42

Findings

8 High8 Medium6 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 Deltarepo-workflow.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@1.0.527.

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

Review the evidence and your use of @yeaft/webchat-agent@1.0.527 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: 2026-09-14 09:09:42.538Z (UTC).

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