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Security audit

volcengine-image-generate

Security checks for vulnerabilities and agentic risk

Overview

This skill coherently generates images through Volcengine/Ark using disclosed API credentials and saves the resulting image locally.

Install only if you intend to use Volcengine/Ark image generation and are comfortable providing the relevant API key through environment variables. Consider setting IMAGE_DOWNLOAD_DIR to a dedicated folder so generated images are written where you expect.

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
  • MCP Least PrivilegeUnderdeclared Capability, Wildcard Permission, Missing Permission Declaration
  • 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)

Undeclared Tool Scope

Medium
Category
MCP Least Privilege
Confidence
96% confidence
Finding

The skill instructs the agent to execute a local script that accesses environment variables and makes outbound network calls, but the skill metadata does not declare any tool restrictions or permissions. This weakens policy enforcement and reviewability because consumers cannot easily tell that the skill can access secrets and external services, increasing the chance of unintended secret exposure or unauthorized network use.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.