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Security audit

google-search

Security checks for vulnerabilities and agentic risk

Overview

This Google search skill is purpose-aligned, but its error handling can expose the user's Google API key and search details in logs or agent output.

Review before installing. Use a restricted Google API key, avoid sensitive searches, and be aware that failed API calls may print credential-bearing request details until the script sanitizes errors and adds safer exception handling.

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
scripts/search.py:8
Finding

Google API Key and Search Query Disclosure Through Unsanitized Exception Output

Content
View full analysis
Remediation
View remediation

SkillSpector

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
91% confidence
Finding

The skill documents use of environment variables and outbound network access but does not declare any explicit tool scope such as permissions or allowed-tools. This creates a least-privilege and governance gap: an agent may invoke a skill with broader capabilities than reviewers or policy engines expect, increasing the chance of unauthorized secret access or external data exfiltration.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.