alby-bitcoin-payments

Warn

Audited by Snyk on Apr 26, 2026

Risk Level: MEDIUM
Full Analysis

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

  • Third-party content exposure detected (high risk: 0.90). The SKILL.md explicitly instructs the agent to use the discover command (searching the public 402index.io) and the fetch command to pay for and consume arbitrary service URLs / HTTP 402 endpoints, meaning it ingests untrusted third‑party web content that can change payment decisions and subsequent agent actions.

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

  • Potentially malicious external URL detected (high risk: 1.00). The skill repeatedly instructs running "npx -y @getalby/cli@0.6.1" which fetches and executes remote npm package code at runtime (and the skill relies on that CLI), so this external dependency directly executes remote code.

MEDIUM W009: Direct money access capability detected (payment gateways, crypto, banking).

  • Direct money access detected (high risk: 1.00). The skill is explicitly and specifically designed for cryptocurrency payments and wallet control. It exposes commands to send payments (pay-invoice, pay-keysend, fetch with automatic 402 payment), create invoices and hold invoices (make-invoice, make-hold-invoice, settle-hold-invoice), check balances and manage wallets (get-balance, connect, auth), and accepts a Nostr Wallet Connect connection secret. The CLI’s fetch command can automatically pay HTTP 402 endpoints and has spending limits (--max-amount). These are direct payment and wallet management operations (Bitcoin Lightning) — not generic tooling — so the skill grants direct financial execution capability.

Issues (3)

W011
MEDIUM

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

W012
MEDIUM

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

W009
MEDIUM

Direct money access capability detected (payment gateways, crypto, banking).

Audit Metadata
Risk Level
MEDIUM
Analyzed
Apr 26, 2026, 07:21 AM
Issues
3