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Security audit

xAI Grok Search

Security checks across malware telemetry and agentic risk

Overview

This is a straightforward xAI Grok search skill that uses an API key to send search queries to xAI, with no hidden persistence or unrelated data access found.

Install only if you are comfortable providing an xAI API key and sending search queries, filters, and any media-analysis-related inputs to xAI. Avoid putting secrets, regulated data, or confidential business information in searches, and consider using a dedicated API key you can monitor and revoke.

SkillSpector

By NVIDIA
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 (1)

Missing User Warnings

Medium
Confidence
95% confidence
Finding
The skill explicitly states that the agent will automatically choose a tool and send the user's query to xAI's API, but it does not clearly warn users that their prompts and optional media-analysis inputs are transmitted to a third-party service. This can lead to unintended disclosure of sensitive data, especially because users may assume a local search capability rather than external processing.

VirusTotal

66/66 vendors flagged this skill as clean.

View on VirusTotal

Static analysis

Detected: suspicious.env_credential_access

Environment variable access combined with network send.

Critical
Code
suspicious.env_credential_access
Location
search.mjs:24