Back to skill

Security audit

Qwen

Security checks for vulnerabilities and agentic risk

Overview

The Qwen integration is coherent, but its setup instructions allow an unverified remote installer to run without clear user approval.

Review and approve the CLI installation separately, including any bundled-skill synchronization, before allowing setup to run. Prefer a verified, fixed release. Submitted documents, images, audio, and text are processed through OOMOL and Qwen. The remote installer contents remain unverified; no malicious behavior was established.

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 an Oomol CLI installation rather than a Qwen data operation. Nothing in the supplied chunk establishes this installation as a supporting dependency for Qwen, so its purpose and accessed resource are inconsistent with the declared description. The remote installer's contents are not supplied, so its further behavior cannot be assessed.

Content

No source excerpt is available for this finding.

External Script Fetching

High
Category
Supply Chain
Confidence
98% confidence
Finding

Piping a mutable remote script directly into Bash executes it without prior inspection, version pinning, or independent integrity verification. A compromised distribution endpoint or malicious installer update could execute arbitrary code with the agent's local privileges; HTTPS alone does not protect against compromise of the script publisher.

Content

Scanner excerpt · SKILL.md (reported line 68)May include surrounding context.

Untagged content-processing actions are declared safe without warning that user content is sent to an external service.

Medium
Category
Output Handling
Confidence
91% confidence
Finding

The workflow instructs the agent to execute actions with user-supplied payloads, but the safety guidance treats every untagged action as a safe read. Untagged actions include document analysis, OCR, and text translation, which transmit potentially sensitive content to Qwen through OOMOL; the file does not warn users about that disclosure.

Content

No source excerpt is available for this finding.

Fallback setup executes downloaded installation scripts without a warning about local system changes.

Medium
Category
Output Handling
Confidence
92% confidence
Finding

The fallback directs an agent to install software after a missing-command error without first obtaining approval for local system changes. Both installation examples execute remotely supplied code, potentially exposing files and credentials accessible to the executing account; the conditional fallback limits exposure but does not establish installation authorization.

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 89)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