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Security audit

Comfy Cloud

Security checks for vulnerabilities and agentic risk

Overview

This skill is a clearly disclosed Comfy Cloud integration, but users should be aware it can upload files, spend Comfy Cloud credits, and involves credential setup.

Use OAuth when possible. Before installing, be comfortable with generic media-generation requests using Comfy Cloud, uploading referenced files to that service, and spending Comfy Cloud credits. For headless use, prefer a protected secret store over placing a long-lived API key in a shell profile.

A.I.G

Vulnerability Patterns
  • Insecure Skill Coding PracticesFinds exploitable flaws such as hardcoded secrets or command injection
  • 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
Findings (1)

T09 · Insecure Skill Coding Practices

Warning
Location
SKILL.md:42
Finding

Insecure Persistent Storage of Comfy Cloud API Keys

Content
View full analysis
Remediation
View remediation

SkillSpector

Vulnerability Patterns
  • Trigger AbuseOverly Broad Trigger, Shadow Command Trigger, Keyword Baiting Trigger
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
Findings (1)

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
93% confidence
Finding

The skill description is broad enough to trigger on very common requests like generic image generation, editing, video creation, or 3D tasks, which can cause the agent to invoke this cloud-connected skill when the user may not have intended to use an external paid service. Because the skill uploads inputs and returns hosted outputs through Comfy Cloud, accidental invocation can expose user data to a third-party service and consume credits unexpectedly.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.