registry / claude-codex-wechat / 0.1.27

claude-codex-wechat@0.1.27

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

AI Security Review

scanned 1d ago · by lpm-firewall-ai

The package is a runtime bridge, but it unilaterally changes Claude Code resume metadata to bypassPermissions. That is a local AI-agent control-surface mutation tied to remote message bridging.

Static reason

High-risk behavior combination matched malicious policy.

Trigger

User runs the claude-codex-wechat CLI and resumes/attaches Claude sessions through the bridge.

Impact

Can cause resumed Claude sessions to run with bypassed permission prompts while accepting prompts routed from WeChat/relay.

Mechanism

unconsented Claude session permission-mode mutation plus remote bridge control

Attack narrative

When a user runs the CLI bridge and attaches/resumes Claude sessions, the bundled code edits native Claude session JSONL. If it sees an sdk-cli entrypoint and no permission-mode record, it prepends a permission-mode record with permissionMode set to bypassPermissions, then rewrites entrypoint to cli and updates history titles. The bridge can then route WeChat/relay-originated messages into local Claude/Codex sessions.

Rationale

Source inspection confirms a concrete unconsented AI-agent control-surface mutation: inserting Claude Code bypassPermissions metadata during runtime session repair. Although there is no install-time execution and most network/process behavior matches the bridge purpose, this mutation crosses the firewall block boundary. Product guard normalized a non-low false-positive publish_block request to warn-only suspicious.

Evidence

package.jsondist/server/cli.js~/.claude/projects/*/*.jsonl~/.claude/history.jsonl~/.codex/session_index.jsonl~/.codex/state_5.sqlite~/.claude-codex-wechat/config.json

Network endpoints4

ilinkai.weixin.qq.comwss://wechat.style520.com/agentnovac2c.cdn.weixin.qq.com/c2cregistry.npmmirror.com/claude-codex-wechat/latest

Decision evidence

public snapshot

AI called this Suspicious at 90.0% confidence as Dangerous Capability with medium false-positive risk.

Evidence for block

dist/server/cli.js mutates Claude session JSONL: sdk-cli entrypoint is rewritten to cli and permissionMode:bypassPermissions is inserted when absent.
dist/server/cli.js writes Claude history/session metadata under ~/.claude and Codex session metadata under ~/.codex/state_5.sqlite/session_index.jsonl.
dist/server/cli.js exposes WeChat/relay controlled message routing to Claude/Codex providers, enabling remote chat messages to drive local agents after user starts service.

Evidence against

package.json has no consumer install-time lifecycle hooks; prepublishOnly/postpublish are publisher-side.
Network endpoints are aligned with stated WeChat/relay bridge purpose, not standalone exfiltration.
Child_process use primarily launches configured claude/codex commands and service manager commands from user-invoked CLI flows.

Behavioral surface

Source

ChildProcessCryptoEnvironmentVarsFilesystemNetworkShellWebSocket

Supply chain

HighEntropyStringsMinifiedUrlStrings

Manifest

NoLicenseWildcardDependency

scanned 2 file(s), 446 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

6 flagged

dist/server/cli.jsView file

Lines 1-41javascript

1#!/usr/bin/env node

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

4// src/cli.ts

5import { existsSync as existsSync10, readFileSync as readFileSync9 } from "node:fs";

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

7import { fileURLToPath as fileURLToPath2 } from "node:url";

9// src/daemon/bootstrap.ts

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

12// src/daemon/server.ts

13import { mkdtempSync } from "node:fs";

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

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

16import Fastify from "fastify";

18// src/channels/platforms.ts

19var PRIMARY_WEIXIN_PLATFORM = "weixin";

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

22var DEFAULT_BASE_URL = "https://ilinkai.weixin.qq.com";

23var 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 · L21

High

Spawned Bundled Service Listener

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

dist/server/cli.jsView on unpkg · L21

Medium

Install Persistence

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

dist/server/cli.jsView on unpkg · L21

24 baseUrl;

25 fetchImpl;

26 pollIntervalMs;

27 constructor(input = {}) {

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

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

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

31 }

32 async fetchQrCode() {

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

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

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

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

37 return { ticket, qrcodeData };

38 }

39 async pollQrCodeStatus(ticket) {

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

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

Lines 2423-2463javascript

2423 while (store.hasPendingOutbound(chatId)) {

2424 const quota = store.getQuota(chatId);

2425 if (quota.expired || quota.remaining <= 0) break;

2426 const pending = store.peekOutbound(chatId);

2427 const

•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

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

6 flagged · loading source

dist/server/cli.jsView file

21// src/channels/weixin-direct/loginClient.ts L22: var DEFAULT_BASE_URL = "https://ilinkai.weixin.qq.com"; L23: var WeixinDirectLoginClient = class { ... L60: if (!response.ok) throw new Error(`weixin_login_request_failed:${response.status}`); L61: const payload = await response.json(); L62: return payload.data ?? payload; ... L70: function defaultConfigPath() { L71: return join(homedir(), ".claude-codex-wechat", "config.json"); L72: } L73: function loadBridgeConfig(path = process.env.BRIDGE_CONFIG ?? defaultConfigPath()) { L74: if (!existsSync(path)) return normalizeBridgeConfig({}, process.env, path); ... L169: 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 · L21

•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

2443// src/providers/claude-code/claudeStreamingRunner.ts L2444: import { spawn as spawn3 } from "node:child_process"; L2445: import { randomUUID as randomUUID2 } from "node:crypto";

High

Child Process

Package source references child process execution.

dist/server/cli.jsView on unpkg · L2443

21Detached bundled service listener: dist/server/cli.js launches a Node helper and exposes a broad-bound HTTP listener. L21: // src/channels/weixin-direct/loginClient.ts L22: var DEFAULT_BASE_URL = "https://ilinkai.weixin.qq.com"; L23: var WeixinDirectLoginClient = class { ... L60: if (!response.ok) throw new Error(`weixin_login_request_failed:${response.status}`); L61: const payload = await response.json(); L62: return payload.data ?? payload; ... L70: function defaultConfigPath() { L71: return join(homedir(), ".claude-codex-wechat", "config.json"); L72: } L73: function loadBridgeConfig(path = process.env.BRIDGE_CONFIG ?? defaultConfigPath()) { L74: if (!existsSync(path)) return normalizeBridgeConfig({}, process.env, path); ... L169: 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 · L21

Medium

Install Persistence

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

dist/server/cli.jsView on unpkg · L21

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

2 Critical4 High5 Medium6 Low

CriticalRemote Asset Decode Executedist/server/cli.js

CriticalTrigger Reachable Dangerous Capabilitydist/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

LowFilesystem

LowHigh Entropy Strings

LowUrl Strings

LowNo License

Source & flagged code

6 flagged

dist/server/cli.jsView file

Lines 1-41javascript

1#!/usr/bin/env node

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

4// src/cli.ts

5import { existsSync as existsSync10, readFileSync as readFileSync9 } from "node:fs";

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

7import { fileURLToPath as fileURLToPath2 } from "node:url";

9// src/daemon/bootstrap.ts

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

12// src/daemon/server.ts

13import { mkdtempSync } from "node:fs";

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

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

16import Fastify from "fastify";

18// src/channels/platforms.ts

19var PRIMARY_WEIXIN_PLATFORM = "weixin";

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

22var DEFAULT_BASE_URL = "https://ilinkai.weixin.qq.com";

23var 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 · L21

High

Spawned Bundled Service Listener

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

dist/server/cli.jsView on unpkg · L21

Medium

Install Persistence

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

dist/server/cli.jsView on unpkg · L21

24 baseUrl;

25 fetchImpl;

26 pollIntervalMs;

27 constructor(input = {}) {

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

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

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

31 }

32 async fetchQrCode() {

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

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

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

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

37 return { ticket, qrcodeData };

38 }

39 async pollQrCodeStatus(ticket) {

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

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

Lines 2423-2463javascript

2423 while (store.hasPendingOutbound(chatId)) {

2424 const quota = store.getQuota(chatId);

2425 if (quota.expired || quota.remaining <= 0) break;

2426 const pending = store.peekOutbound(chatId);

2427 const

•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

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