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Security audit

TomTom Traffic Intelligence

Security checks for vulnerabilities and agentic risk

Overview

This skill is a straightforward TomTom traffic helper that only runs when invoked, with expected network use and no hidden persistence or destructive behavior.

Install only if you are comfortable sharing configured route coordinates with TomTom and using a TOMTOM_API_KEY from your environment. Review or edit the default Seattle/Bellevue locations and time zone before running it for personal commute planning.

A.I.G

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

SkillSpector

Vulnerability Patterns
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • MCP Least PrivilegeUnderdeclared Capability, Wildcard Permission, Missing Permission Declaration
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
Findings (9)

Ae1

High
Category
analysis-evasion
Content
Default locations are configured for Seattle/Bellevue area. Edit `./traffic-check.js` to update:
Confidence
100% confidence
Finding
Referenced artifact was not completely inspected

Ae1

High
Category
analysis-evasion
Content
Default locations are configured for Seattle/Bellevue area. Edit `./traffic-check.js` to update:
Confidence
100% confidence
Finding
Referenced artifact was not completely inspected

Ae1

High
Category
analysis-evasion
Content
Default locations are configured for Seattle/Bellevue area. Edit `./traffic-check.js` to update:
Confidence
100% confidence
Finding
Referenced artifact was not completely inspected

Ae1

High
Category
analysis-evasion
Content
Default locations are configured for Seattle/Bellevue area. Edit `./traffic-check.js` to update:
Confidence
100% confidence
Finding
Referenced artifact was not completely inspected

Ae1

High
Category
analysis-evasion
Content
Default locations are configured for Seattle/Bellevue area. Edit `./traffic-check.js` to update:
Confidence
100% confidence
Finding
Referenced artifact was not completely inspected

Lp3

Medium
Category
MCP Least Privilege
Confidence
92% confidence
Finding
The skill describes use of environment variables and outbound network access to a third-party API, but it does not declare any explicit tool scope such as permissions or allowed-tools. This creates a governance gap: an agent/runtime may permit broader access than intended, and reviewers cannot easily verify that the skill is limited to only the minimum capabilities required.

External Transmission

Medium
Category
Data Exfiltration
Content
// API endpoints
  endpoints: {
    flow: 'https://api.tomtom.com/traffic/services/4/flowSegmentData/absolute/10/json',
    route: 'https://api.tomtom.com/routing/1/calculateRoute'
  }
};
Confidence
60% confidence
Finding
Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.

External Transmission

Medium
Category
Data Exfiltration
Content
// API endpoints
  endpoints: {
    flow: 'https://api.tomtom.com/traffic/services/4/flowSegmentData/absolute/10/json',
    route: 'https://api.tomtom.com/routing/1/calculateRoute'
  }
};
Confidence
60% confidence
Finding
Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.

Natural-Language Policy Violations

Medium
Confidence
95% confidence
Finding
The skill formats meeting and departure times using a fixed 'en-US' locale and 'America/Los_Angeles' time zone. This imposes a specific language/locale choice in user-facing output without offering a user option or documenting that the skill is intentionally region-locked.

Static analysis

Detected: suspicious.env_credential_access

Environment variable access combined with network send.

Critical
Code
suspicious.env_credential_access
Location
traffic-check.js:19