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Security audit

errand-ai

Security checks for vulnerabilities and agentic risk

Overview

This skill coherently connects an agent to the Errand service to quote and dispatch paid physical errands, with clear user confirmation and consent requirements.

Before installing, understand that this skill can spend prepaid Errand balance and send location-specific instructions to a real worker. Keep the API key private, only opt into source reporting if you want that analytics attribution, review the quoted total before approving dispatch, and remember that cancellation is only available before a worker accepts.

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
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
  • Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
Findings (2)

External Transmission

Medium
Category
Data Exfiltration
Confidence
60% confidence
Finding

Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.

Content

Scanner excerpt · SKILL.md (reported line 93)May include surrounding context.

With a key, confirm the account can afford it:

bash
curl -s https://errand.be/api/v1/capabilities -H "Authorization: Bearer $ERRANDAI_API_KEY" \
  -H "X-Errand-Client: ${ERRANDAI_CLIENT:-}" -H "X-Errand-Client-Version: 2.0.2"
# → balance_krw, caps.max_reward_per_task_krw, caps.daily_budget_remaining_krw, task_types[]

Natural-Language Policy Violations

Medium
Category
Not specified by scanner
Confidence
95% confidence
Finding

The file instructs the agent to always write title, instructions, validation_criteria, and report labels in Korean. This is a language policy constraint presented as mandatory behavior, and the file does not offer the user a language choice or clearly frame the restriction as an opt-in preference.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.