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Security audit

openFDA

Security checks for vulnerabilities and agentic risk

Overview

The openFDA searches are appropriately scoped, but missing software triggers instructions to execute an unverified online installer without explicit user approval.

Review and approve CLI installation separately before letting the agent perform setup. The remote installer and hosted service implementation were not verified. Queries pass through OOMOL, and account credentials and billing may be involved. No artifact-backed deception or exfiltration was found.

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 (5)

Description-Behavior Mismatch

High
Category
MCP Tool Poisoning
Confidence
99% confidence
Finding

The supplied command performs remote script execution for an Oomol CLI installation, with no visible openFDA query or demonstrated connection to the declared purpose. This introduces an undeclared installation capability and accesses an unrelated resource. The downloaded script's contents and any further effects are not available for assessment.

Content

No source excerpt is available for this finding.

Description-Behavior Mismatch

High
Category
MCP Tool Poisoning
Confidence
88% confidence
Finding

The supplied chunk only performs a login operation rather than accessing openFDA data. Authentication could be a supporting implementation detail, but the code provides no evidence that this CLI or login supports the declared openFDA functionality. No credential theft or other additional behavior can be inferred from this command alone.

Content

No source excerpt is available for this finding.

External Script Fetching

High
Category
Supply Chain
Confidence
98% confidence
Finding

The command pipes a mutable HTTPS response directly into bash without verifying an independently trusted signature or digest. Compromise of the installation endpoint or its publishing pipeline could execute arbitrary code with the user's privileges; the PowerShell alternative has the same underlying risk, although the supplied content does not establish that either endpoint is malicious.

Content

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

Fallback setup executes remotely downloaded installation scripts without warning about system changes or requesting approval.

Medium
Category
Output Handling
Confidence
95% confidence
Finding

The missing-CLI fallback instructs the agent to execute an installer without requiring approval or explaining its system changes. This crosses from reading public data into executing third-party code with the invoking user's privileges; the conditional trigger and oo-only tool declaration limit exposure but do not make the installation instructions safe.

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 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