alby-bitcoin-payments

Warn

Audited by Snyk on Apr 28, 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's SKILL.md explicitly instructs the agent to use "discover" to search the public index 402index.io and to use "fetch" to pay for and consume arbitrary service URLs (auto-detecting L402/X402/MPP), so the agent will ingest untrusted third-party content that can affect payment decisions and subsequent actions.

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

  • Potentially malicious external URL detected (high risk: 0.90). The skill instructs the agent/user to run npx -y @getalby/cli@0.6.1 (which fetches and executes remote code from the @getalby/cli package, repository: https://github.com/getAlby/cli), so this is a runtime dependency that executes remote code and is required for the skill.

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 28, 2026, 02:55 PM
Issues
3