autumn

Warn

Audited by Snyk on Jun 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: 0.95). The required workflow fetches public documentation at runtime from https://docs.useautumn.com/llms.txt and then fetches additional markdown pages via WebFetch, so outsider-authored free text from the public docs is ingested into the agent’s LLM context.

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

  • Potentially malicious external URL detected (high risk: 0.90). The skill explicitly instructs a runtime sub-agent to fetch external documentation starting with https://docs.useautumn.com/llms.txt (and related https://docs.useautumn.com/{path}.md pages) and inject that content into the agent's prompt/context to drive the research, so these URLs are runtime dependencies that directly control agent behavior.

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

  • Direct money access detected (high risk: 1.00). The Autumn skill is explicitly a billing/monetization platform that "integrates with Stripe under the hood" and exposes billing-specific APIs. The documentation lists concrete endpoints and features for creating/updating subscriptions and payment sessions (e.g., /api-reference/billing/attach.md, /api-reference/billing/billingUpdate.md, /api-reference/billing/setupPayment.md, /api-reference/billing/createSchedule.md, openCustomerPortal.md), platform endpoints for Stripe OAuth and updating connected Stripe accounts (/api-reference/platform/oauth-url.md, /api-reference/platform/update-stripe.md), and billing behaviors like auto top-ups and webhooks (billingAutoTopupSucceeded). These are specific payment gateway and subscription management capabilities (not generic tools), and therefore grant direct financial execution authority.

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
Jun 28, 2026, 12:37 PM
Issues
3
Security Audit — snyk — autumn