Summary
sharpninja/McpServer v2026-03-22 was classified as CRITICAL RISK with a risk score of 4198. Sigil detected 287 findings across 952 files, covering phases including provenance, network exfiltration, code patterns, install hooks, credential access, obfuscation. Review the findings below before installing this package.
v2026-03-22
23 March 2026, 00:06 UTC
by Sigil Bot
Risk Score
4198
Findings
287
Files Scanned
952
Provenance
Findings by Phase
Phase Ordering
Phases are ordered by criticality, with the most dangerous at the top. Click any phase header to expand or collapse its findings. Critical phases are expanded by default.
install-pip-setup-exec
CRITICALsetup.py executes code at install time
repo/tools/powershell/McpContext.USER.html:6814
... Falling back to non-web worker version.`);if(!x.workerFactory){var F=n("./elk-worker.min.js"),B=F.Worker;x.workerFactory=function(T){return new B(T)}}return d(this,(w.__proto__||Object.getPrototypeOf(w)).call(this,x))}return w}(g);Object.defineProperty(i.exports,"__esModule",{value:!0}),i.exports=y,y.default=y},{"./elk-api.js":1,"./elk-worker.min.js":2,"web-worker":4}],4:[function(n,i,h){i.exports=Worker},{}]},{},[3])(3)})});var jj0={};U5(jj0,{render:()=>fy4});function Xr2(l,t){return!l||!t?Why was this flagged?
This setup.py calls subprocess, os.system, exec, or eval during package installation. Legitimate packages rarely need to execute arbitrary commands at install time. This pattern is commonly used by malicious packages to download and run payloads, exfiltrate environment variables, or establish persistence. Rated CRITICAL because it runs with the installer's full permissions.
install-pip-setup-exec
CRITICALsetup.py executes code at install time
repo/tools/powershell/McpContext.USER.html:6821
`)].join(`
`));let M=S13((u=A.props)!=null?u:{},m),x=ld(A,M);for(let E in M)E.startsWith("on")&&(x.props||(x.props={}),x.props[E]=M[E]);return x}return Array.isArray(g)&&g.length===1?g[0]:g}return Qt(d,Object.assign({},m,y),{default:()=>g})}function B13(l){return l.flatMap(t=>t.type===B8?B13(t.children):[t])}function S13(...l){if(l.length===0)return{};if(l.length===1)return l[0];let t={},a={};for(let n of l)for(let i in n)i.startsWith("on")&&typeof n[i]=="function"?(a[i]!=null||(a[i]=[]),a[i].puWhy was this flagged?
This setup.py calls subprocess, os.system, exec, or eval during package installation. Legitimate packages rarely need to execute arbitrary commands at install time. This pattern is commonly used by malicious packages to download and run payloads, exfiltrate environment variables, or establish persistence. Rated CRITICAL because it runs with the installer's full permissions.
install-pip-setup-exec
CRITICALsetup.py executes code at install time
repo/tools/powershell/McpContext.USER.html:6825
Please report this to https://github.com/markedjs/marked.`,t.silent)return"<p>An error occurred:</p><pre>"+Lo(n.message+"",!0)+"</pre>";throw n}}function Xp(l){return function(t){for(var a=arguments.length,n=new Array(a>1?a-1:0),i=1;i<a;i++)n[i-1]=arguments[i];return Bo2(l,t,n)}}function mG4(l){return function(){for(var t=arguments.length,a=new Array(t),n=0;n<t;n++)a[n]=arguments[n];return So2(l,a)}}function r9(l,t){let a=arguments.length>2&&arguments[2]!==void 0?arguments[2]:Sx1;pK0&&pK0(l,nullWhy was this flagged?
This setup.py calls subprocess, os.system, exec, or eval during package installation. Legitimate packages rarely need to execute arbitrary commands at install time. This pattern is commonly used by malicious packages to download and run payloads, exfiltrate environment variables, or establish persistence. Rated CRITICAL because it runs with the installer's full permissions.
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