jak-shield
Harmoniaecumenical900/jak-shieldUniversal MCP security gateway for AI agents
Do not install this package
We found dangerous patterns that could harm your computer or steal your data. This package tries to access your SSH keys and credentials. Unless you are 100% sure you trust the author and have reviewed the code yourself, do not install this.
What We Found(42 issues)
Each card explains what was found and what it means in plain English. Click "Technical details" for the full breakdown.
Caution. This package runs system commands on your computer. This is like giving someone the keys to your terminal. They could run anything — download files, change settings, or access your private data.
Technical details
Direct process execution functions (exec, spawn) can run arbitrary commands. Combined with user input, this enables remote code execution.
exec(Caution. This package runs system commands on your computer. This is like giving someone the keys to your terminal. They could run anything — download files, change settings, or access your private data.
Technical details
Direct process execution functions (exec, spawn) can run arbitrary commands. Combined with user input, this enables remote code execution.
exec(Caution. This package runs system commands on your computer. This is like giving someone the keys to your terminal. They could run anything — download files, change settings, or access your private data.
Technical details
Direct process execution functions (exec, spawn) can run arbitrary commands. Combined with user input, this enables remote code execution.
exec(Caution. This package runs system commands on your computer. This is like giving someone the keys to your terminal. They could run anything — download files, change settings, or access your private data.
Technical details
Direct process execution functions (exec, spawn) can run arbitrary commands. Combined with user input, this enables remote code execution.
exec(Caution. This package runs system commands on your computer. This is like giving someone the keys to your terminal. They could run anything — download files, change settings, or access your private data.
Technical details
Direct process execution functions (exec, spawn) can run arbitrary commands. Combined with user input, this enables remote code execution.
exec(Caution. This package runs system commands on your computer. This is like giving someone the keys to your terminal. They could run anything — download files, change settings, or access your private data.
Technical details
Direct process execution functions (exec, spawn) can run arbitrary commands. Combined with user input, this enables remote code execution.
exec(Caution. This package runs system commands on your computer. This is like giving someone the keys to your terminal. They could run anything — download files, change settings, or access your private data.
Technical details
Direct process execution functions (exec, spawn) can run arbitrary commands. Combined with user input, this enables remote code execution.
exec(Caution. This package runs system commands on your computer. This is like giving someone the keys to your terminal. They could run anything — download files, change settings, or access your private data.
Technical details
Direct process execution functions (exec, spawn) can run arbitrary commands. Combined with user input, this enables remote code execution.
exec(Caution. This package runs system commands on your computer. This is like giving someone the keys to your terminal. They could run anything — download files, change settings, or access your private data.
Technical details
Direct process execution functions (exec, spawn) can run arbitrary commands. Combined with user input, this enables remote code execution.
exec(Caution. This package runs system commands on your computer. This is like giving someone the keys to your terminal. They could run anything — download files, change settings, or access your private data.
Technical details
Direct process execution functions (exec, spawn) can run arbitrary commands. Combined with user input, this enables remote code execution.
exec(Caution. This package runs system commands on your computer. This is like giving someone the keys to your terminal. They could run anything — download files, change settings, or access your private data.
Technical details
Direct process execution functions (exec, spawn) can run arbitrary commands. Combined with user input, this enables remote code execution.
exec(Caution. This package runs system commands on your computer. This is like giving someone the keys to your terminal. They could run anything — download files, change settings, or access your private data.
Technical details
Direct process execution functions (exec, spawn) can run arbitrary commands. Combined with user input, this enables remote code execution.
execSync(Caution. This package runs system commands on your computer. This is like giving someone the keys to your terminal. They could run anything — download files, change settings, or access your private data.
Technical details
Direct process execution functions (exec, spawn) can run arbitrary commands. Combined with user input, this enables remote code execution.
execSync(Caution. This package runs system commands on your computer. This is like giving someone the keys to your terminal. They could run anything — download files, change settings, or access your private data.
Technical details
Direct process execution functions (exec, spawn) can run arbitrary commands. Combined with user input, this enables remote code execution.
execSync(Caution. This package runs system commands on your computer. This is like giving someone the keys to your terminal. They could run anything — download files, change settings, or access your private data.
Technical details
Direct process execution functions (exec, spawn) can run arbitrary commands. Combined with user input, this enables remote code execution.
execSync(Caution. This package runs system commands on your computer. This is like giving someone the keys to your terminal. They could run anything — download files, change settings, or access your private data.
Technical details
Direct process execution functions (exec, spawn) can run arbitrary commands. Combined with user input, this enables remote code execution.
execSync(DO NOT INSTALL. This package tries to read your SSH keys — the same keys that unlock your servers, your GitHub account, and your deployments. No Claude skill should ever need to touch these files. This looks like credential theft.
Technical details
Accessing SSH keys or known_hosts is a strong indicator of credential theft. No legitimate MCP server needs access to SSH configuration.
id_rsaCaution. This package reads your secret passwords and API tokens from your system. If it also has network access, your credentials could be sent to someone else's server. Check WHY it needs your secrets.
Technical details
Reading sensitive environment variables (tokens, secrets, keys, passwords) suggests data exfiltration. MCP servers should declare required env vars, not silently read secrets.
process.env.OPENAI_API_KEYCaution. This package reads your secret passwords and API tokens from your system. If it also has network access, your credentials could be sent to someone else's server. Check WHY it needs your secrets.
Technical details
Reading sensitive environment variables (tokens, secrets, keys, passwords) suggests data exfiltration. MCP servers should declare required env vars, not silently read secrets.
process.env.JAK_SHIELD_COOKIE_SECRETCaution. This package reads your secret passwords and API tokens from your system. If it also has network access, your credentials could be sent to someone else's server. Check WHY it needs your secrets.
Technical details
Reading sensitive environment variables (tokens, secrets, keys, passwords) suggests data exfiltration. MCP servers should declare required env vars, not silently read secrets.
process.env.JAK_SHIELD_API_KEYCaution. This package reads your secret passwords and API tokens from your system. If it also has network access, your credentials could be sent to someone else's server. Check WHY it needs your secrets.
Technical details
Reading sensitive environment variables (tokens, secrets, keys, passwords) suggests data exfiltration. MCP servers should declare required env vars, not silently read secrets.
process.env.JAK_SHIELD_API_KEYCaution. This package reads your secret passwords and API tokens from your system. If it also has network access, your credentials could be sent to someone else's server. Check WHY it needs your secrets.
Technical details
Reading sensitive environment variables (tokens, secrets, keys, passwords) suggests data exfiltration. MCP servers should declare required env vars, not silently read secrets.
process.env.JAK_SHIELD_API_KEYCaution. This package reads your secret passwords and API tokens from your system. If it also has network access, your credentials could be sent to someone else's server. Check WHY it needs your secrets.
Technical details
Reading sensitive environment variables (tokens, secrets, keys, passwords) suggests data exfiltration. MCP servers should declare required env vars, not silently read secrets.
process.env.JAK_SHIELD_JWT_SECRETCaution. This package reads your secret passwords and API tokens from your system. If it also has network access, your credentials could be sent to someone else's server. Check WHY it needs your secrets.
Technical details
Reading sensitive environment variables (tokens, secrets, keys, passwords) suggests data exfiltration. MCP servers should declare required env vars, not silently read secrets.
process.env.GMAIL_CLIENT_SECRETCaution. This package reads your secret passwords and API tokens from your system. If it also has network access, your credentials could be sent to someone else's server. Check WHY it needs your secrets.
Technical details
Reading sensitive environment variables (tokens, secrets, keys, passwords) suggests data exfiltration. MCP servers should declare required env vars, not silently read secrets.
process.env.GDRIVE_REFRESH_TOKENCaution. This package reads your secret passwords and API tokens from your system. If it also has network access, your credentials could be sent to someone else's server. Check WHY it needs your secrets.
Technical details
Reading sensitive environment variables (tokens, secrets, keys, passwords) suggests data exfiltration. MCP servers should declare required env vars, not silently read secrets.
process.env.GMAIL_REFRESH_TOKENCaution. This package reads your secret passwords and API tokens from your system. If it also has network access, your credentials could be sent to someone else's server. Check WHY it needs your secrets.
Technical details
Reading sensitive environment variables (tokens, secrets, keys, passwords) suggests data exfiltration. MCP servers should declare required env vars, not silently read secrets.
process.env.GITHUB_TOKENCaution. This package reads your secret passwords and API tokens from your system. If it also has network access, your credentials could be sent to someone else's server. Check WHY it needs your secrets.
Technical details
Reading sensitive environment variables (tokens, secrets, keys, passwords) suggests data exfiltration. MCP servers should declare required env vars, not silently read secrets.
process.env.GMAIL_CLIENT_SECRETCaution. This package reads your secret passwords and API tokens from your system. If it also has network access, your credentials could be sent to someone else's server. Check WHY it needs your secrets.
Technical details
Reading sensitive environment variables (tokens, secrets, keys, passwords) suggests data exfiltration. MCP servers should declare required env vars, not silently read secrets.
process.env.GMAIL_REFRESH_TOKENCaution. This package reads your secret passwords and API tokens from your system. If it also has network access, your credentials could be sent to someone else's server. Check WHY it needs your secrets.
Technical details
Reading sensitive environment variables (tokens, secrets, keys, passwords) suggests data exfiltration. MCP servers should declare required env vars, not silently read secrets.
process.env.SLACK_BOT_TOKENCaution. This package reads your secret passwords and API tokens from your system. If it also has network access, your credentials could be sent to someone else's server. Check WHY it needs your secrets.
Technical details
Reading sensitive environment variables (tokens, secrets, keys, passwords) suggests data exfiltration. MCP servers should declare required env vars, not silently read secrets.
process.env.TWILIO_AUTH_TOKENCaution. This package reads your secret passwords and API tokens from your system. If it also has network access, your credentials could be sent to someone else's server. Check WHY it needs your secrets.
Technical details
Reading sensitive environment variables (tokens, secrets, keys, passwords) suggests data exfiltration. MCP servers should declare required env vars, not silently read secrets.
process.env.SUPABASE_SERVICE_KEYCaution. This package reads your secret passwords and API tokens from your system. If it also has network access, your credentials could be sent to someone else's server. Check WHY it needs your secrets.
Technical details
Reading sensitive environment variables (tokens, secrets, keys, passwords) suggests data exfiltration. MCP servers should declare required env vars, not silently read secrets.
process.env.JAK_SHIELD_JWT_SECRETCaution. This package reads your secret passwords and API tokens from your system. If it also has network access, your credentials could be sent to someone else's server. Check WHY it needs your secrets.
Technical details
Reading sensitive environment variables (tokens, secrets, keys, passwords) suggests data exfiltration. MCP servers should declare required env vars, not silently read secrets.
process.env.JAK_SHIELD_JWT_SECRETCaution. This package reads your secret passwords and API tokens from your system. If it also has network access, your credentials could be sent to someone else's server. Check WHY it needs your secrets.
Technical details
Reading sensitive environment variables (tokens, secrets, keys, passwords) suggests data exfiltration. MCP servers should declare required env vars, not silently read secrets.
process.env.JAK_SHIELD_JWT_SECRETCaution. This package reads your secret passwords and API tokens from your system. If it also has network access, your credentials could be sent to someone else's server. Check WHY it needs your secrets.
Technical details
Reading sensitive environment variables (tokens, secrets, keys, passwords) suggests data exfiltration. MCP servers should declare required env vars, not silently read secrets.
process.env.JAK_SHIELD_COOKIE_SECRETCaution. This package reads your secret passwords and API tokens from your system. If it also has network access, your credentials could be sent to someone else's server. Check WHY it needs your secrets.
Technical details
Reading sensitive environment variables (tokens, secrets, keys, passwords) suggests data exfiltration. MCP servers should declare required env vars, not silently read secrets.
process.env.OPENAI_API_KEYCaution. This package reads your secret passwords and API tokens from your system. If it also has network access, your credentials could be sent to someone else's server. Check WHY it needs your secrets.
Technical details
Reading sensitive environment variables (tokens, secrets, keys, passwords) suggests data exfiltration. MCP servers should declare required env vars, not silently read secrets.
process.env.OPENAI_API_KEYCaution. This package reads your secret passwords and API tokens from your system. If it also has network access, your credentials could be sent to someone else's server. Check WHY it needs your secrets.
Technical details
Reading sensitive environment variables (tokens, secrets, keys, passwords) suggests data exfiltration. MCP servers should declare required env vars, not silently read secrets.
process.env.OPENAI_API_KEYCaution. This package reads your secret passwords and API tokens from your system. If it also has network access, your credentials could be sent to someone else's server. Check WHY it needs your secrets.
Technical details
Reading sensitive environment variables (tokens, secrets, keys, passwords) suggests data exfiltration. MCP servers should declare required env vars, not silently read secrets.
process.env.JAK_SHIELD_CAP_TOKEN_SECRETCaution. This package reads your secret passwords and API tokens from your system. If it also has network access, your credentials could be sent to someone else's server. Check WHY it needs your secrets.
Technical details
Reading sensitive environment variables (tokens, secrets, keys, passwords) suggests data exfiltration. MCP servers should declare required env vars, not silently read secrets.
process.env.JAK_SHIELD_JWT_SECRETSuspicious. This package loads code from an unknown location decided at runtime. We can't tell what it will actually run because it depends on a variable. This makes it harder to verify the package is safe.
Technical details
Dynamic require/import with variable arguments loads code determined at runtime. This can be used to load payloads that static analysis can't detect.
import(cFinding Summary
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Critical
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High
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Medium
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Low
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Info