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Security audit

UnifAPI

Security checks for vulnerabilities and agentic risk

Overview

The UnifAPI workflow is coherent, but setup directs the agent to execute unverified downloaded software without a clear installation approval step.

Review and install the CLI separately before allowing this skill to run. Check its automatic skill synchronization and disable it if unwanted using the publisher's documented controls. Keep the skill's confirmations for data changes. The remote installers and downloaded CLI were not audited; the evidence supports setup and persistence concerns, not a finding of malicious intent.

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
97% confidence
Finding

The supplied code performs remote script installation rather than the declared UnifAPI data operations. Although installing a dependency could be a supporting implementation detail, nothing supplied establishes that this Oomol installer supports UnifAPI. The downloaded script's contents and any further behavior are unknown.

Content

No source excerpt is available for this finding.

External Script Fetching

High
Category
Supply Chain
Confidence
98% confidence
Finding

Piping a remote installer directly into Bash executes whatever the endpoint returns with the agent process's local privileges, without inspecting the script or verifying a pinned artifact. Compromise of the distribution endpoint could therefore expose accessible files and credentials or modify the environment; the PowerShell alternative has the same risk. The domain is relevant to the documented CLI and installation is conditional, but neither establishes artifact integrity.

Content

Scanner excerpt · SKILL.md (reported line 274)May include surrounding context.

The setup workflow instructs the agent to execute downloaded installation scripts without warning about local system changes.

Medium
Category
Output Handling
Confidence
93% confidence
Finding

The fallback directs the agent to install software when the CLI is missing without first explaining local system changes or obtaining explicit installation approval. A request to access UnifAPI does not necessarily authorize modifying the local environment, although the conditional setup path limits exposure.

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 295)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