registry / claude-codex-wechat / 0.1.30

claude-codex-wechat@0.1.30

`claude-codex-wechat` 是一个本地 bridge daemon。它把：

AI Security Review

scanned 12h ago · by lpm-firewall-ai

The package is a user-invoked WeChat bridge for Claude/Codex with dangerous agent-facing capabilities. It can run Claude with permissions disabled, attach remote chat input to local agent sessions, and install a persistent background service when the CLI is started.

Static reason

High-risk behavior combination matched malicious policy.; previous stored version diff introduced dangerous source

Trigger

User runs claude-codex-wechat start or uses the bridge UI/API to connect WeChat and agent sessions

Impact

Remote WeChat messages can drive local Claude/Codex sessions with broad local agent privileges; service persistence keeps the bridge running after start.

Mechanism

remote chat bridge plus permission-bypassing agent launcher and session metadata mutation

Attack narrative

No npm install-time hijack was confirmed. The risk is that after a user starts the bridge, WeChat or relay-delivered messages can control local Claude/Codex sessions while the package launches Claude with --dangerously-skip-permissions, registers a media MCP config, mutates Claude/Codex session metadata, and can persist as a user service.

Rationale

Source inspection supports a real dangerous agent-control surface, but activation is user-invoked and package-aligned rather than an unconsented npm lifecycle mutation. Warn rather than block.

Evidence

package.jsondist/server/cli.jsdist/mcp/mediaServer.jsconfig.example.json~/.claude-codex-wechat/config.json~/.claude-codex-wechat/mcp-media.json~/.claude/projects/*/*.jsonl~/.claude/history.jsonl~/.codex/session_index.jsonl~/.codex/state_5.sqlite~/Library/LaunchAgents/com.claude-codex-wechat.plist~/.config/systemd/user/claude-codex-wechat.service

Network endpoints6

ilinkai.weixin.qq.comwss://wechat.style520.com/agentnovac2c.cdn.weixin.qq.com/c2cregistry.npmmirror.com/claude-codex-wechat/latest127.0.0.1:8787localhost:8787

Decision evidence

public snapshot

AI called this Suspicious at 88.0% confidence as Dangerous Capability with medium false-positive risk.

Evidence for block

dist/server/cli.js starts Claude with --dangerously-skip-permissions and optional --mcp-config for bridge media tools
dist/server/cli.js can modify ~/.claude project session JSONL/history and inserts permissionMode=bypassPermissions when normalizing sdk-cli sessions
dist/server/cli.js user-invoked start installs persistent launchd/systemd-user service or detached Windows daemon
dist/server/cli.js bridges WeChat/relay messages into Claude/Codex sessions and can steer active turns
dist/mcp/mediaServer.js exposes MCP tools that send arbitrary absolute file paths to the local bridge for WeChat media upload

Evidence against

package.json has no install/postinstall lifecycle hook; prepublishOnly is publish-time build only
Network endpoints are package-aligned WeChat, relay, media CDN, and update-check services
No confirmed eval/vm/Function remote code execution pattern found in inspected source
Persistence is activated by CLI start/restart commands, not npm installation
Config and generated MCP files are under ~/.claude-codex-wechat except explicit Claude/Codex session metadata updates

Behavioral surface

Source

ChildProcessCryptoEnvironmentVarsFilesystemNetworkShellWebSocket

Supply chain

HighEntropyStringsMinifiedUrlStrings

Manifest

NoLicenseWildcardDependency

scanned 3 file(s), 463 KB of source, external domains: 127.0.0.1, ilinkai.weixin.qq.com, novac2c.cdn.weixin.qq.com, react.dev, registry.npmmirror.com, www.apple.com, www.w3.org

Source & flagged code

8 flagged

dist/server/cli.jsView file

Lines 2-42javascript

2import { createRequire as __cjsCreateRequire } from 'node:module'; const require = __cjsCreateRequire(import.meta.url);

4// src/cli.ts

5import { existsSync as existsSync11, readFileSync as readFileSync10 } from "node:fs";

6import { dirname as dirname9, join as join14 } from "node:path";

7import { fileURLToPath as fileURLToPath3 } from "node:url";

9// src/daemon/bootstrap.ts

10import { networkInterfaces } from "node:os";

12// src/daemon/server.ts

13import { mkdtempSync, existsSync as existsSync9, writeFileSync as writeFileSync2 } from "node:fs";

14import { tmpdir as tmpdir2 } from "node:os";

15import { dirname as dirname7, join as join11 } from "node:path";

16import { fileURLToPath as fileURLToPath2 } from "node:url";

17import Fastify from "fastify";

19// src/channels/platforms.ts

20var PRIMARY_WEIXIN_PLATFORM = "weixin";

22// src/channels/weixin-direct/loginClient.ts

23var DEFAULT_BASE_URL = "https://ilinkai.weixin.qq.com";

24var WeixinDirectLoginClient = class {

Critical

Remote Asset Decode Execute

Source fetches a remote non-code asset, decodes its contents, and dynamically executes the decoded payload.

dist/server/cli.jsView on unpkg · L22

High

Spawned Bundled Service Listener

Source launches a detached bundled service that exposes a broad-bound HTTP listener.

dist/server/cli.jsView on unpkg · L22

Medium

Install Persistence

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

dist/server/cli.jsView on unpkg · L22

Low

Weak Crypto

Package source references weak cryptographic algorithms.

dist/server/cli.jsView on unpkg · L22

25 baseUrl;

26 fetchImpl;

27 pollIntervalMs;

28 constructor(input = {}) {

29 this.baseUrl = (input.baseUrl ?? DEFAULT_BASE_URL).replace(/\/+$/, "");

30 this.fetchImpl = input.fetchImpl ?? fetch;

31 this.pollIntervalMs = input.pollIntervalMs ?? 2e3;

32 }

33 async fetchQrCode() {

34 const data = await this.getJson("ilink/bot/get_bot_qrcode?bot_type=3");

35 const ticket = data.qrcode?.trim();

36 const qrcodeData = data.qrcode_img_content?.trim();

37 if (!ticket || !qrcodeData) throw new Error("weixin_qrcode_missing_fields");

38 return { ticket, qrcodeData };

39 }

40 async pollQrCodeStatus(ticket) {

41 const data = await this.getJson(`ilink/bot/get_qrcode_status?qrcode=${encodeURIComponent(ticket)}`);

42 const status = data.status?.trim().toLowerCase() ?? "wait";

Lines 2742-2782javascript

2742 const isLastSlot = quota.remaining === 1;

2743 const hasMore = pending.length > 1;

2744 if (isLastSlot && hasMore) {

2745 await this.options.send(chatId, appendHintIfText(next));

•Trigger-reachable chain: manifest.bin -> dist/server/cli.js Reachable file contains a blocking source-risk pattern.

Critical

Trigger Reachable Dangerous Capability

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

dist/server/cli.jsView on unpkg

•matchType = previous_version_dangerous_delta matchedPackage = claude-codex-wechat@0.1.27 matchedIdentity = npm:Y2xhdWRlLWNvZGV4LXdlY2hhdA:0.1.27 similarity = 0.500 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/server/cli.jsView on unpkg

dist/web/assets/bootstrap-icons-mSm7cUeB.woff2View file

•path = dist/web/assets/bootstrap-icons-mSm7cUeB.woff2 kind = high_entropy_blob sizeBytes = 134044 magicHex = [redacted]

High

Ships High Entropy Blob

Package ships high-entropy non-source blobs.

dist/web/assets/bootstrap-icons-mSm7cUeB.woff2View on unpkg

Source & flagged code

8 flagged · loading source

dist/server/cli.jsView file

22// src/channels/weixin-direct/loginClient.ts L23: var DEFAULT_BASE_URL = "https://ilinkai.weixin.qq.com"; L24: var WeixinDirectLoginClient = class { ... L61: if (!response.ok) throw new Error(`weixin_login_request_failed:${response.status}`); L62: const payload = await response.json(); L63: return payload.data ?? payload; ... L71: function defaultConfigPath() { L72: return join(homedir(), ".claude-codex-wechat", "config.json"); L73: } L74: function loadBridgeConfig(path = process.env.BRIDGE_CONFIG ?? defaultConfigPath()) { L75: if (!existsSync(path)) return normalizeBridgeConfig({}, process.env, path); ... L170: function isRetriableRenameError(error) {

Critical

Remote Asset Decode Execute

Source fetches a remote non-code asset, decodes its contents, and dynamically executes the decoded payload.

dist/server/cli.jsView on unpkg · L22

•Trigger-reachable chain: manifest.bin -> dist/server/cli.js Reachable file contains a blocking source-risk pattern.

Critical

Trigger Reachable Dangerous Capability

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

dist/server/cli.jsView on unpkg

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/server/cli.jsView on unpkg

2762// src/providers/claude-code/claudeStreamingRunner.ts L2763: import { spawn as spawn3 } from "node:child_process"; L2764: import { randomUUID as randomUUID2 } from "node:crypto";

High

Child Process

Package source references child process execution.

dist/server/cli.jsView on unpkg · L2762

22Detached bundled service listener: dist/server/cli.js launches a Node helper and exposes a broad-bound HTTP listener. L22: // src/channels/weixin-direct/loginClient.ts L23: var DEFAULT_BASE_URL = "https://ilinkai.weixin.qq.com"; L24: var WeixinDirectLoginClient = class { ... L61: if (!response.ok) throw new Error(`weixin_login_request_failed:${response.status}`); L62: const payload = await response.json(); L63: return payload.data ?? payload; ... L71: function defaultConfigPath() { L72: return join(homedir(), ".claude-codex-wechat", "config.json"); L73: } L74: function loadBridgeConfig(path = process.env.BRIDGE_CONFIG ?? defaultConfigPath()) { L75: if (!existsSync(path)) return normalizeBridgeConfig({}, process.env, path); ... L170: function isRetriableRenameError(error) {

High

Spawned Bundled Service Listener

Source launches a detached bundled service that exposes a broad-bound HTTP listener.

dist/server/cli.jsView on unpkg · L22

Medium

Install Persistence

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

dist/server/cli.jsView on unpkg · L22

Low

Weak Crypto

Package source references weak cryptographic algorithms.

dist/server/cli.jsView on unpkg · L22

dist/web/assets/bootstrap-icons-mSm7cUeB.woff2View file

•path = dist/web/assets/bootstrap-icons-mSm7cUeB.woff2 kind = high_entropy_blob sizeBytes = 134044 magicHex = [redacted]

High

Ships High Entropy Blob

Package ships high-entropy non-source blobs.

dist/web/assets/bootstrap-icons-mSm7cUeB.woff2View on unpkg

Findings

3 Critical4 High5 Medium7 Low

CriticalRemote Asset Decode Executedist/server/cli.js

CriticalTrigger Reachable Dangerous Capabilitydist/server/cli.js

CriticalPrevious Version Dangerous Deltadist/server/cli.js

HighChild Processdist/server/cli.js

HighShell

HighSpawned Bundled Service Listenerdist/server/cli.js

HighShips High Entropy Blobdist/web/assets/bootstrap-icons-mSm7cUeB.woff2

MediumNetwork

MediumEnvironment Vars

MediumInstall Persistencedist/server/cli.js

MediumStructural Risk Force Deep Review

MediumWildcard Dependency

LowNon Install Lifecycle Scripts

LowScripts Present

LowWeak Cryptodist/server/cli.js

LowFilesystem

LowHigh Entropy Strings

LowUrl Strings

LowNo License

Source & flagged code

8 flagged

dist/server/cli.jsView file

Lines 2-42javascript

2import { createRequire as __cjsCreateRequire } from 'node:module'; const require = __cjsCreateRequire(import.meta.url);

4// src/cli.ts

5import { existsSync as existsSync11, readFileSync as readFileSync10 } from "node:fs";

6import { dirname as dirname9, join as join14 } from "node:path";

7import { fileURLToPath as fileURLToPath3 } from "node:url";

9// src/daemon/bootstrap.ts

10import { networkInterfaces } from "node:os";

12// src/daemon/server.ts

13import { mkdtempSync, existsSync as existsSync9, writeFileSync as writeFileSync2 } from "node:fs";

14import { tmpdir as tmpdir2 } from "node:os";

15import { dirname as dirname7, join as join11 } from "node:path";

16import { fileURLToPath as fileURLToPath2 } from "node:url";

17import Fastify from "fastify";

19// src/channels/platforms.ts

20var PRIMARY_WEIXIN_PLATFORM = "weixin";

22// src/channels/weixin-direct/loginClient.ts

23var DEFAULT_BASE_URL = "https://ilinkai.weixin.qq.com";

24var WeixinDirectLoginClient = class {

Critical

Remote Asset Decode Execute

Source fetches a remote non-code asset, decodes its contents, and dynamically executes the decoded payload.

dist/server/cli.jsView on unpkg · L22

High

Spawned Bundled Service Listener

Source launches a detached bundled service that exposes a broad-bound HTTP listener.

dist/server/cli.jsView on unpkg · L22

Medium

Install Persistence

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

dist/server/cli.jsView on unpkg · L22

Low

Weak Crypto

Package source references weak cryptographic algorithms.

dist/server/cli.jsView on unpkg · L22

25 baseUrl;

26 fetchImpl;

27 pollIntervalMs;

28 constructor(input = {}) {

29 this.baseUrl = (input.baseUrl ?? DEFAULT_BASE_URL).replace(/\/+$/, "");

30 this.fetchImpl = input.fetchImpl ?? fetch;

31 this.pollIntervalMs = input.pollIntervalMs ?? 2e3;

32 }

33 async fetchQrCode() {

34 const data = await this.getJson("ilink/bot/get_bot_qrcode?bot_type=3");

35 const ticket = data.qrcode?.trim();

36 const qrcodeData = data.qrcode_img_content?.trim();

37 if (!ticket || !qrcodeData) throw new Error("weixin_qrcode_missing_fields");

38 return { ticket, qrcodeData };

39 }

40 async pollQrCodeStatus(ticket) {

41 const data = await this.getJson(`ilink/bot/get_qrcode_status?qrcode=${encodeURIComponent(ticket)}`);

42 const status = data.status?.trim().toLowerCase() ?? "wait";

Lines 2742-2782javascript

2742 const isLastSlot = quota.remaining === 1;

2743 const hasMore = pending.length > 1;

2744 if (isLastSlot && hasMore) {

2745 await this.options.send(chatId, appendHintIfText(next));

•Trigger-reachable chain: manifest.bin -> dist/server/cli.js Reachable file contains a blocking source-risk pattern.

Critical

Trigger Reachable Dangerous Capability

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

dist/server/cli.jsView on unpkg

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/server/cli.jsView on unpkg

dist/web/assets/bootstrap-icons-mSm7cUeB.woff2View file

•path = dist/web/assets/bootstrap-icons-mSm7cUeB.woff2 kind = high_entropy_blob sizeBytes = 134044 magicHex = [redacted]

High

Ships High Entropy Blob

Package ships high-entropy non-source blobs.

dist/web/assets/bootstrap-icons-mSm7cUeB.woff2View on unpkg