Summary
@mcpjam/inspector v2.0.12 was classified as CRITICAL RISK with a risk score of 2918.5. Sigil detected 185 findings across 60 files, covering phases including provenance, install hooks, code patterns, network exfiltration, obfuscation. Review the findings below before installing this package.
v2.0.12
21 March 2026, 19:25 UTC
by Sigil Bot
Risk Score
2918.5
Findings
185
Files Scanned
60
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
package/dist/client/assets/index-CIUYm9wq.js:2793
Press space again to drop the item in its new position, or press escape to cancel.
`},RLt={onDragStart(e){let{active:t}=e;return"Picked up draggable item "+t.id+"."},onDragOver(e){let{active:t,over:n}=e;return n?"Draggable item "+t.id+" was moved over droppable area "+n.id+".":"Draggable item "+t.id+" is no longer over a droppable area."},onDragEnd(e){let{active:t,over:n}=e;return n?"Draggable item "+t.id+" was dropped over droppable area "+n.id:"Draggable item "+t.id+" was dropped."},onDrWhy 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
package/dist/client/assets/index-CIUYm9wq.js:2809
`)),d=u.reduce((f,p)=>f.concat(...p),[]);return[u,d]}return[[],[]]},[e]);return v.useEffect(()=>{const c=t?.target??bpe,u=t?.actInsideInputWithModifier??!0;if(e!==null){const d=m=>{if(s.current=m.ctrlKey||m.metaKey||m.shiftKey||m.altKey,(!s.current||s.current&&!u)&&fze(m))return!1;const y=wpe(m.code,o);if(i.current.add(m[y]),_pe(a,i.current,!1)){const b=m.composedPath?.()?.[0]||m.target,_=b?.nodeName==="BUTTON"||b?.nodeName==="A";t.preventDefault!==!1&&(s.current||!_)&&m.preventDefault(),r(!0)}}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
package/dist/client/assets/index-CIUYm9wq.js:2969
${JSON.stringify(a)}
`),typeof o=="string"||o instanceof Uint8Array)s(o);else{let c;try{c=JSON.stringify(o)}catch{c=JSON.stringify(fu(o))}s(c)}}return typeof r=="string"?r:Dbn(r)}function Dbn(e){const t=e.reduce((s,i)=>s+i.length,0),n=new Uint8Array(t);let r=0;for(const s of e)n.set(s,r),r+=s.length;return n}function Lbn(e){return[{type:"span"},e]}function zbn(e){const t=typeof e.data=="string"?IV(e.data):e.data;return[ta({type:"attachment",length:t.length,filename:e.filename,content_type:e.contWhy 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
package/dist/client/assets/index-CIUYm9wq.js:2981
Name: ${tp(r)}
Error:`,s)}}function _wn(){return nwn(e=>{N_("cls",{metric:e}),bqe=e},{reportAllChanges:!0})}function wwn(){return swn(e=>{N_("fid",{metric:e}),_qe=e})}function Swn(){return vwn(e=>{N_("lcp",{metric:e}),wqe=e},{reportAllChanges:!0})}function kwn(){return ywn(e=>{N_("ttfb",{metric:e}),Sqe=e})}function Ewn(){return mwn(e=>{N_("inp",{metric:e}),kqe=e})}function UT(e,t,n,r,s=!1){Nqe(e,t);let i;return k3[e]||(i=n(),k3[e]=!0),r&&t({metric:r}),Aqe(e,t,s?i:void 0)}function Twn(e){const 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.
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