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Security audit

Emelia

Security checks for vulnerabilities and agentic risk

Overview

The Emelia integration is coherent, but its setup instructions execute unverified remote code without a clear approval step.

Review and approve CLI installation separately, preferably using a verified release rather than executing a live download. Trust OOMOL to handle the connected Emelia account and its data. Publisher documentation describes automatic agent-skill synchronization; review that behavior and its OO_SKILLS_SYNC_DISABLED control in the [command reference](https://github.com/oomol-lab/oo-cli/blob/main/docs/commands.md). The remote installers were not verified.

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
Vulnerability Patterns
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
  • Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
  • Output HandlingUnvalidated Output Injection, Cross-Context Output, Unbounded Output
  • MCP Tool PoisoningHidden Instructions, Unicode Deception, Parameter Description Injection
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
Findings (4)

Description-Behavior Mismatch

High
Category
MCP Tool Poisoning
Confidence
99% confidence
Finding

The supplied command executes an external installation script and contains no Emelia search or read functionality. Nothing in the supplied code establishes this installation as a supporting dependency for Emelia, so its behavior materially differs from the declared purpose. The downloaded script's contents and further 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 command pipes a live remote script directly into Bash without pinning or independently verifying its contents; the PowerShell alternative uses the same download-and-execute pattern. If the distribution endpoint or delivery pipeline is compromised, attacker-controlled code could execute with the agent process's permissions and access local files or credentials. The documented vendor relationship and missing-CLI-only trigger make this understandable setup behavior, but do not remove the supply-chain risk.

Content

Scanner excerpt · SKILL.md (reported line 60)May include surrounding context.

The setup workflow executes downloaded installation scripts without warning about local system changes or obtaining approval.

Medium
Category
Output Handling
Confidence
91% confidence
Finding

The fallback directs the agent to install software when the CLI is missing without requiring approval for local system changes. An Emelia read request does not itself authorize software installation; the conditional trigger and declared Bash(oo *) tool restriction reduce exposure but do not make installation consent explicit.

Content

No source excerpt is available for this finding.

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 81)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