@grum-os/cli@0.3.60
Keep a repository on the design contract reviewed in Grum: a local drift check, review requests, Cursor hooks and an MCP server.
AI Security Review
scanned 2d ago · by lpm-firewall-aiThe package has a legitimate CLI and MCP purpose, and it discloses automatic tool-error reporting with an opt-out. However, its error reports also include recent tool inputs and outputs, a collection detail not disclosed in the README, so this is suspicious runtime telemetry rather than a confirmed malicious attack.
Static reason
One or more suspicious static signals were detected.
Trigger
An MCP tool call fails while the Grum server is running.
Impact
Recent agent tool content may be disclosed to the package's service without the user separately choosing to send that content.
Mechanism
The wrapper keeps recent tool-call inputs and outputs, then attaches them to an automatic error report sent to Grum's feedback API. Some token-like strings and email addresses are redacted, but the content is not otherwise excluded.
AI rationale
The package has a legitimate CLI and MCP purpose, and it discloses automatic tool-error reporting with an opt-out. However, its error reports also include recent tool inputs and outputs, a collection detail not disclosed in the README, so this is suspicious runtime telemetry rather than a confirmed malicious attack.
Evidence
grum.mjsREADME.md~/.config/grum/feedback/
Network endpoints2
app.grum.so/api/cli/feedbackGRUM_API_ORIGIN/api/cli/feedback
Decision evidence
public snapshotAI called this Suspicious at 87.0% confidence as Unknown with medium false-positive risk.
Evidence for warning
- The manifest exposes a Grum CLI and has no install lifecycle script; its stated purpose is repository design checks and agent integration.
- The MCP wrapper records tool names, inputs, and outputs; inputs are truncated to 600 characters and outputs to 1,500.
- When an MCP tool fails, the error path automatically reports it with the recent tool-call records attached; reports are posted to Grum's feedback endpoint.
- The README mentions tool-error reports and documents a GRUM_FEEDBACK=off opt-out, but does not describe including recent tool inputs and outputs in those reports.
Evidence against
- The package's CLI, MCP server, and feedback feature align with its stated repository design-checking purpose.
- The feedback endpoint is the package's own Grum service, and users can disable feedback and tool-error reports.
- No install-time lifecycle hook or install-time network activity was identified.
Behavioral surface
ChildProcessEnvironmentVarsNetworkWebSocket
Source & flagged code
8 flaggedgrum.mjsView file
9421. Use an existing token or button.
L943: ${n}${o}`}var oi="A Grum MCP tool responding in this chat confirms the tools are available here. A shell doctor cannot inspect this chat's MCP connection; do not repeat its unconfi...
L944: `)}function px(e,t,n,r){let o=e.role==="owner"?"owner":"viewer",s=$l(o,{...n?{snoozeHours:e.snoozeHours??24,driftKeys:r.map(c=>c.key)}:{}}),i=n?"":" A snooze doesn't unblock a comm...
High
1011`}${n}`,i={ok:!1,error:`${Rn} already defines mcp_servers.grum outside Grum's block, or defines mcp_servers in a form Grum can't extend. Remove or rename that entry, then run init ...
L1012: `)}var hi=(e,t)=>ql(e,xP(t)),Ql=e=>Hl(e);function af(e,t,n){if(ts(n)||t!==null&&mi.test(t))return!0;let r=sf(e);return r.ok&&r.changed}var bf="Grum refreshes review decisions befor...
L1013: ${t.fix}`:""}`}).join(`
L1014: `)}function Ov(e,t,n,r){let o=e?.profile,s=o?.info_cache;if(!s||typeof s!="object")return null;let i=new Set([...n,...r==="store"?[wf]:[]]),a=Object.keys(s).sort((l,c)=>l===o?.last...
L1015: `),ec=e=>e!==null&&ki.test(e);function Fv(e,t){let n=jP(t);if(e===null||!e.trim())return{text:n,changed:!0};if(ki.test(e)){let r=e.replace(ki,o=>`${o.startsWith(`
High
Same File Env Network Execution
A single source file combines environment access, network access, and code or shell execution; review context before blocking.
grum.mjsView on unpkg · L1011Findings
4 High6 Medium2 Low
HighChild Processgrum.mjs
HighSame File Env Network Executiongrum.mjs
HighCommand Output Exfiltrationgrum.mjs
HighTrigger Reachable Command Output Exfiltrationgrum.mjs
MediumNetwork
MediumEnvironment Vars
MediumSuspicious Lifecycle Evidencepackage.json
MediumAi Review Evidencegrum.mjs
MediumAi Review Evidencegrum.mjs
MediumAi Review Evidencegrum.mjs
LowHigh Entropy Strings
LowUrl Strings
Affected versions and remediation
This report applies to @grum-os/cli@0.3.60.
See all versions of @grum-os/cli for other recorded verdicts.
- Review the evidence and your use of @grum-os/cli@0.3.60 before allowing it. Restrict the permissions described in this report.
- Choose an independently verified alternative or release. This report does not establish that other versions are safe.
Evidence last updated: .
Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.