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Security audit

Garmin Realtime Tracker

Security checks for vulnerabilities and agentic risk

Overview

The skill is mostly transparent, but it guides automated sharing of live Garmin location and sensor data without enough privacy, consent, or scoping safeguards.

Only install this if you are prepared to add your own guardrails: get explicit consent from the tracked user, send the minimum necessary fields, use trusted authenticated endpoints, avoid unofficial session-token scraping for anything important, and define retention and access controls before forwarding live location or sensor data.

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
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Trigger AbuseOverly Broad Trigger, Shadow Command Trigger, Keyword Baiting Trigger
  • MCP Tool PoisoningHidden Instructions, Unicode Deception, Parameter Description Injection
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
Findings (3)

Tp4

High
Category
MCP Tool Poisoning
Confidence
99% confidence
Finding

The declared description promises a functional Garmin real-time tracking and data delivery capability, but the code chunk does not implement any of that behavior. It is a stub/example script with a print statement and TODO comments only. This is a material mismatch in primary purpose and implemented capabilities.

Content

No source excerpt is available for this finding.

Missing User Warnings

High
Category
Not specified by scanner
Confidence
95% confidence
Finding

The skill explicitly frames live location, activity, and sensor streaming to external systems without any accompanying privacy, consent, retention, or third-party sharing safeguards. Because location and biometric/activity streams are highly sensitive, presenting transmission guidance without clear warnings or consent requirements increases the risk of unauthorized surveillance, privacy violations, or mishandling of regulated health-adjacent data.

Content

No source excerpt is available for this finding.

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
87% confidence
Finding

The activation text is broad enough that an agent could invoke this skill for common Garmin-related requests involving location, health, or sensor data without sufficient narrowing conditions. In a data-sensitive context, over-broad routing can cause the system to surface instructions for collecting or transmitting sensitive telemetry when the user did not explicitly request that level of access or sharing.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.