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Security audit

Qlty

Security checks for vulnerabilities and agentic risk

Overview

The Qlty features fit the stated purpose, but setup directs the agent to run unverified online installers without a clear user approval step.

Review the installation fallback before enabling this skill. Prefer installing a verified CLI release yourself and require approval before the agent installs software. Connecting Qlty authorizes OOMOL to mediate account access. The main concern is uncontrolled setup execution; the artifacts do not show malicious intent or unrelated data collection.

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 targets Oomol rather than Qlty and executes a remote installer. This is materially different from the declared Qlty data-access purpose, with no visible connection establishing it as a supporting implementation detail. The downloaded script is not supplied, so its additional effects cannot be determined.

Content

No source excerpt is available for this finding.

Description-Behavior Mismatch

High
Category
MCP Tool Poisoning
Confidence
95% confidence
Finding

Authentication can be a supporting implementation detail, but the supplied chunk contains only a login command for oo, with no demonstrated connection to Qlty. As supplied, its behavior does not substantiate the declared Qlty search-and-read purpose.

Content

No source excerpt is available for this finding.

External Script Fetching

High
Category
Supply Chain
Confidence
99% confidence
Finding

The command pipes a live HTTPS response directly into Bash without pinning or verifying the installer contents. Compromise of the installer hosting or distribution pipeline could therefore execute attacker-controlled code with the invoking user's privileges, potentially exposing local files and credentials; HTTPS alone does not protect against a compromised publisher.

Content

Scanner excerpt · SKILL.md (reported line 62)May include surrounding context.

Fallback setup executes downloaded installation scripts without warning about local system changes or remote-code execution.

Medium
Category
Output Handling
Confidence
96% confidence
Finding

The fallback directs installation of executable software without first obtaining approval for local system changes or explaining that remotely supplied code will run. The missing-command condition limits exposure, but a request to read Qlty data does not itself authorize installing software; an agent following the fallback could make unexpected host changes.

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 83)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