fetch-apify-docs

2 findings on this tool

1. mediumunconstrained inputf-r1-fetch_apify_docs

   Tool `fetch-apify-docs` accepts unconstrained string input

   The following string parameter(s) have no `maxLength` constraint: `url`. Unbounded strings let an attacker stuff arbitrary payloads through the tool, including indirect-injection content.

   fix: Add a `maxLength` to each string property, or constrain with an `enum` or `pattern`. Most legitimate tool inputs fit under a few hundred bytes.

   OWASP LLM01NIST MEASURE-2.3ATLAS T0051
2. mediumindirect injectionf-r6-fetch_apify_docs

   Tool `fetch-apify-docs` fetches external web content -- indirect-injection surface

   Description: "Fetch the full content of an Apify or Crawlee documentation page by its URL. Use this after finding a relevant page with the search-apify-docs tool. USAGE: - Use when you need the complete content of a specific docs page for detailed answers. USAGE EXAMPLES: - user_input: Fetch https://docs.apify.com/platform/actors/running#builds - user_input: Fetch https://docs.apify.com/academy - user_input: Fetch https://crawlee.dev/docs/guides/basic-concepts" -- this tool pulls externally-controlled content into the agent's context window, the canonical indirect-injection vector. Even when the user supplies the URL, content at that URL can carry hostile instructions.

   fix: Sandbox the fetched content: strip prompts before forwarding to the model, constrain to an allow-list of domains, and route through capframe-guard with a `domain in [...]` caveat.

   OWASP LLM01NIST MEASURE-2.3ATLAS T0051