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Security audit

Bitwarden

Security checks for vulnerabilities and agentic risk

Overview

This Bitwarden skill is mostly coherent, but it includes a remote installer command that can execute code on the user’s machine and has an overly broad routing instruction for sensitive Bitwarden requests.

Review this skill before installing if you are comfortable using OOMOL as the intermediary for Bitwarden organization data. Avoid running the remote installer blindly; prefer a reviewed official install method with verification, and keep use to the listed read-only Bitwarden actions unless the connector schema clearly supports more and you explicitly approve it.

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
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
  • Trigger AbuseOverly Broad Trigger, Shadow Command Trigger, Keyword Baiting Trigger
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
Findings (2)

External Script Fetching

High
Category
Supply Chain
Confidence
97% confidence
Finding

The skill instructs the agent to install software using a remote script piped directly into bash (curl ... | bash). This is dangerous because it executes unaudited code fetched at runtime from the network, allowing supply-chain compromise, MITM/repository compromise impacts, or unexpected privileged code execution on the host.

Content

Scanner excerpt · SKILL.md (reported line 66)May include surrounding context.

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
95% confidence
Finding

The manifest description says to use this skill for ANY Bitwarden request and instead of calling the API directly, which is an overly broad routing trigger. That can cause the agent to invoke this skill in situations beyond simple read-only lookup, including sensitive or higher-risk Bitwarden-related tasks, increasing the chance of unnecessary tool use and exposure to dangerous setup or connector instructions.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.