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Security audit

imap-smtp-email

Security checks across malware telemetry and agentic risk

Overview

This is a disclosed email tool that reads, sends, and manages mail through user-configured IMAP/SMTP accounts, with expected but sensitive access to mailbox credentials and message data.

Install only if you are comfortable giving the skill read/send access to the configured mailbox. Prefer app passwords or authorization codes over primary account passwords, keep ALLOWED_READ_DIRS and ALLOWED_WRITE_DIRS narrow, and remember that the SMTP test sends a real email to yourself.

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 (3)

Missing User Warnings

Medium
Confidence
87% confidence
Finding
The skill supports operations that can exfiltrate data externally (`send`, attachments), write files locally (`download`), and modify mailbox state (`mark-read`, `mark-unread`), but the user-facing documentation does not clearly foreground these side effects as security-sensitive actions. In an email skill, those behaviors are expected, but insufficient warning still increases the risk of accidental data disclosure, unintended file writes, or destructive mailbox changes when used by an autonomous agent.

Missing User Warnings

Medium
Confidence
90% confidence
Finding
The test command does more than verify SMTP connectivity: it sends a real email to the configured account without an execution-time warning or explicit confirmation. In an agent skill context, this creates an unintended side effect channel that can leak the existence of the account, generate unexpected mail traffic, and be abused to trigger observable actions in downstream mail workflows.

Missing User Warnings

Medium
Confidence
95% confidence
Finding
The setup flow collects an email password/app password and writes it directly into a plaintext .env file without clearly warning the user that credentials will be stored unencrypted on disk. Even with chmod 600, local compromise, backups, shell access, or other processes running as the same user can expose mailbox credentials, which is especially sensitive given this skill supports sending and reading email.

VirusTotal

64/64 vendors flagged this skill as clean.

View on VirusTotal