Skill Trust Decision
stocktoday-mcp
自定义后端 `https://tushare.citydata.club/` 替代官方 Tushare API，所有 API 调用（包含 token）均发往该未知第三方服务器，构成数据外传风险；无版本锁定的 npm 依赖存在供应链风险。
Most direct threat evidence
01
用户配置 STOCKTODAY_TOKEN 环境变量 Entry · SKILL.md
02
MCP server 以 STDIO 模式启动并注册 155 个工具 Escalation · src/index.ts
03
用户调用任意 tool，token + 查询参数 POST 到未知第三方 https://tushare.citydata.club/ Impact · src/index.ts
Why this conclusion was reached
2/4 dimensions flagged Block
Declared vs actual capability
2 undeclared or violating capabilities were inferred.
Review
Hidden execution and egress
108 lower-risk artifacts were extracted and still need context.
Block
Attack chain and severe findings
The report includes 3 attack-chain steps and 0 severe findings.
Review
Dependencies and supply chain hygiene
3 dependency or supply-chain issues need attention.
Attack Chain
01
用户配置 STOCKTODAY_TOKEN 环境变量
Entry · SKILL.md:29
02
MCP server 以 STDIO 模式启动并注册 155 个工具
Escalation · src/index.ts:201
03
用户调用任意 tool，token + 查询参数 POST 到未知第三方 https://tushare.citydata.club/
Impact · src/index.ts:13
What drove the risk score up
数据外传至未知第三方 +25
所有 API 调用（含 token 和查询参数）均 POST 到自定义后端 tushare.citydata.club，而非官方 Tushare
依赖无版本锁定 +10
axios ^1.6.0 无版本锁定，pip 中无风险
环境变量读取 +5
读取 STOCKTODAY_TOKEN/TUSHARE_TOKEN，属于声明范围内的正常凭证使用
自定义后端可控性不明 +5
后端运营方和隐私政策未知，SKILL.md 明确标注但意图不明确
Most important evidence
Medium Data Exfil
凭证及查询数据发往未知第三方服务器
代码将 STOCKTODAY_TOKEN 和用户查询参数以 POST application/x-www-form-urlencoded 形式发送到 https://tushare.citydata.club/，而非 Tushare 官方 API。所有请求参数（含股票代码、日期范围等）均被暴露给该自定义后端，SKILL.md 仅以'使用自定义后端服务'一笔带过，未说明后端运营方、数据留存政策及合规性。
src/index.ts:13 明确披露自定义后端的运营方、数据处理政策和隐私声明；或替换为官方 Tushare API 端点。
Medium Supply Chain
axios 无版本锁定存在依赖供应链风险
package.json 中 axios 依赖声明为 ^1.6.0，允许自动升级到 1.x 最新版。axios 曾有 SSRF 和 CRLF 注入等历史漏洞（CVE-2019-10742 等），无版本锁定意味着自动引入含有漏洞的新版本。
package.json:11 锁定版本："axios": "1.7.4" 或更高安全版本，并在 package-lock.json 中确认实际安装版本。
Low Doc Mismatch
文档未声明 network:WRITE 权限
SKILL.md 未声明该 skill 需要向外部服务器发送 HTTP 请求的能力，仅说明'调用 Tushare API'。代码实际通过 fetch 主动 POST 数据到第三方，权限声明不完整。
SKILL.md:1 在 allowed-tools 或权限声明中明确：network:WRITE，用于向 tushare.citydata.club 发送 API 请求。
Low Supply Chain
@modelcontextprotocol/sdk 依赖官方库但无版本锁定
MCP SDK 声明为 ^1.0.0，虽为官方包但同样无版本锁定，存在供应链风险。
package.json:10 锁定 SDK 版本并定期更新。
Declared capability vs actual capability
Network Block
Declared NONE
→ Inferred WRITE
src/index.ts:6,BASE_URL外部API调用 Environment Block
Declared NONE
→ Inferred READ
src/index.ts:5,process.env读取token Filesystem Pass
Declared NONE
→ Inferred NONE
无直接文件系统操作 Suspicious artifacts and egress
Medium External URL
https://tushare.citydata.club/ SKILL.md:38
Medium External URL
https://registry.npmmirror.com/@hono/node-server/-/node-server-1.19.11.tgz package-lock.json:22
Medium External URL
https://registry.npmmirror.com/@modelcontextprotocol/sdk/-/sdk-1.27.1.tgz package-lock.json:34
Medium External URL
https://registry.npmmirror.com/@types/node/-/node-20.19.37.tgz package-lock.json:74
Medium External URL
https://registry.npmmirror.com/accepts/-/accepts-2.0.0.tgz package-lock.json:84
Medium External URL
https://registry.npmmirror.com/ajv/-/ajv-8.18.0.tgz package-lock.json:97
Medium External URL
https://registry.npmmirror.com/ajv-formats/-/ajv-formats-3.0.1.tgz package-lock.json:113
Medium External URL
https://registry.npmmirror.com/asynckit/-/asynckit-0.4.0.tgz package-lock.json:130
Medium External URL
https://registry.npmmirror.com/axios/-/axios-1.13.6.tgz package-lock.json:136
Medium External URL
https://registry.npmmirror.com/body-parser/-/body-parser-2.2.2.tgz package-lock.json:147
Medium External URL
https://opencollective.com/express package-lock.json:166
Medium External URL
https://registry.npmmirror.com/bytes/-/bytes-3.1.2.tgz package-lock.json:171
Dependencies and supply chain
| Package | Version | Source | Known vuln | Notes |
|---|---|---|---|---|
| @modelcontextprotocol/sdk | ^1.0.0 | npm | No | 无版本锁定 |
| axios | ^1.6.0 | npm | No | 无版本锁定；历史CVE需关注 |
| typescript | ^5.0.0 | npm | No | devDependencies 无版本锁定 |
File composition
10 files · 2912 lines
JSON 3 files · 1346 linesJavaScript 3 files · 945 linesTypeScript 1 files · 274 linesMarkdown 2 files · 215 linesPython 1 files · 132 lines
Files of concern · 4
package-lock.json https://registry.npmmirror.com/@hono/node-server/-/node-server-1.19.11.tgz · https://registry.npmmirror.com/@modelcontextprotocol/sdk/-/sdk-1.27.1.tgz · https://registry.npmmirror.com/@types/node/-/node-20.19.37.tgz · https://registry.npmmirror.com/accepts/-/accepts-2.0.0.tgz · https://registry.npmmirror.com/ajv/-/ajv-8.18.0.tgz · https://registry.npmmirror.com/ajv-formats/-/ajv-formats-3.0.1.tgz · https://registry.npmmirror.com/asynckit/-/asynckit-0.4.0.tgz · https://registry.npmmirror.com/axios/-/axios-1.13.6.tgz · https://registry.npmmirror.com/body-parser/-/body-parser-2.2.2.tgz · https://opencollective.com/express · https://registry.npmmirror.com/bytes/-/bytes-3.1.2.tgz · https://registry.npmmirror.com/call-bind-apply-helpers/-/call-bind-apply-helpers-1.0.2.tgz · https://registry.npmmirror.com/call-bound/-/call-bound-1.0.4.tgz · https://registry.npmmirror.com/combined-stream/-/combined-stream-1.0.8.tgz · 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src/index.ts 凭证及查询数据发往未知第三方服务器
SKILL.md 文档未声明 network:WRITE 权限 · https://tushare.citydata.club/
package.json axios 无版本锁定存在依赖供应链风险 · @modelcontextprotocol/sdk 依赖官方库但无版本锁定
Other files · index.js · index_generated.js · test_all.js · README.md · generate_mcp.py · tsconfig.json
Security positives
代码逻辑清晰，155个工具均为标准股票数据查询，无 RCE、文件写入、敏感路径访问等危险操作
token 仅用于向 API 认证，未被外传或打印到日志
无 Base64 编码、eval、subprocess 等高危操作
无 HTML 注释、提示词注入等可疑内容
无凭证收割、环境变量遍历等恶意行为