listenhub

Fail

Audited by Snyk on May 20, 2026

Risk Level: CRITICAL
Full Analysis

CRITICAL E004: Prompt injection detected in skill instructions.

  • Potential prompt injection detected (high risk: 0.90). Yes — the prompt instructs the agent to "handle automatically — never ask the user" and to silently run auto-install and auto-login commands, which are deceptive hidden behaviors outside the router's stated routing purpose.

MEDIUM W011: Third-party content exposure detected (indirect prompt injection risk).

  • Third-party content exposure detected (high risk: 0.80). The SKILL.md routing table explicitly maps a "parse URL" / "extract content" intent to a /content-parser skill, which indicates the agent will accept arbitrary URLs and delegate to a content-parsing workflow that ingests third-party web content (open/public/untrusted) as part of its required routing instructions.

MEDIUM W012: Unverifiable external dependency detected (runtime URL that controls agent).

  • Potentially malicious external URL detected (high risk: 0.80). The skill's prerequisites require auto-installing and running an external CLI ("npm install -g @marswave/listenhub-cli" and subsequent listenhub commands), which fetches and executes remote code at runtime (npm registry), so this is a required runtime external dependency that can execute code.

MEDIUM W013: Attempt to modify system services in skill instructions.

  • Attempt to modify system services in skill instructions detected (medium risk: 0.60). The skill instructs the agent to automatically install a global CLI (npm install -g) and perform an auto-login, which require modifying the host system and may involve elevated privileges, so it pushes the agent to change the machine state.

Issues (4)

E004
CRITICAL

Prompt injection detected in skill instructions.

W011
MEDIUM

Third-party content exposure detected (indirect prompt injection risk).

W012
MEDIUM

Unverifiable external dependency detected (runtime URL that controls agent).

W013
MEDIUM

Attempt to modify system services in skill instructions.

Audit Metadata
Risk Level
CRITICAL
Analyzed
May 20, 2026, 09:02 AM
Issues
4
Security Audit — snyk — listenhub