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Security audit

Loomio

Security checks for vulnerabilities and agentic risk

Overview

The Loomio reading features are appropriately limited, but setup can execute unchecked remote code and introduce broader changes to your agent environment.

Review and install a trusted CLI release yourself before use. Check its cross-agent skill installation behavior; current publisher documentation provides OO_SKILLS_SYNC_DISABLED=1 to suppress startup synchronization. Connecting Loomio entrusts its API credential to OOMOL. The remote installers and live connector implementation were not verified.

A.I.G

Vulnerability Patterns
  • Skill Instruction HijackingAlters the agent's session goals or safety constraints when the skill loads
  • Agent Memory PoisoningWrites attacker-controlled rules into memory that affect later sessions
  • Remote Payload Retrieval and ExecutionFetches external code whose behavior can change after review
  • Embedded Malicious CodeShips malicious scripts inside the skill and executes them locally
  • Unauthorized Access and Privilege EscalationObtains permissions beyond the task's legitimate needs

SkillSpector

Vulnerability Patterns
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
  • Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
  • MCP Tool PoisoningHidden Instructions, Unicode Deception, Parameter Description Injection
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
Findings (3)

Description-Behavior Mismatch

High
Category
MCP Tool Poisoning
Confidence
96% confidence
Finding

The supplied command runs an external installer rather than accessing Loomio data. Although dependency installation can be a supporting implementation detail, nothing in this chunk establishes that this installer supports Loomio functionality. Its remote-code execution and installation behavior are not represented by the declared search-and-read purpose. The downloaded script's contents and subsequent effects are not available for assessment.

Content

No source excerpt is available for this finding.

External Script Fetching

High
Category
Supply Chain
Confidence
98% confidence
Finding

The setup command immediately executes a mutable remote script without a pinned version or independent integrity verification; the PowerShell alternative has the same issue. Compromise of the distribution endpoint could execute attacker-controlled code with the invoking user's privileges, exposing local files and credentials. Restricting installation to a missing-CLI error reduces exposure, but reading Loomio data does not itself justify unreviewed local code execution.

Content

Scanner excerpt · SKILL.md (reported line 56)May include surrounding context.

Autonomous Decision Making

Medium
Category
Excessive Agency
Confidence
80% confidence
Finding

Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.

Content

Scanner excerpt · SKILL.md (reported line 77)May include surrounding context.

md
- **`OOMOL_INSUFFICIENT_CREDIT`** — OOMOL billing stop. Recharge at `https://console.oomol.com/billing/token-recharge` before retrying.

- **HTTP 402 without `OOMOL_INSUFFICIENT_CREDIT`** — the third-party account itself has no active plan or credit. Report the provider error message as is; do not ask the user to recharge OOMOL.

## Resources