Email Validator

Security checks across malware telemetry and agentic risk

Overview

This skill appears to do what it says: validate email addresses, with expected DNS checks that users can disable for privacy-sensitive cases.

Install/use normally if you want local email validation. Use --no-dns when checking sensitive, private, or internal domains because live MX validation may reveal queried domains to your configured DNS resolvers.

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: 82% confidence
Finding: MX and A-record checks send the target domain to system-configured DNS infrastructure, which can disclose user-supplied email domains to external resolvers without an explicit warning or consent mechanism. In a signup or bulk-validation context, this may expose sensitive customer, employee, or lead data patterns, especially when validating private or internal addresses.

VirusTotal

64/64 vendors flagged this skill as clean.

View on VirusTotal