web_search_advanced_exa
on npm:exa-mcp-server@3.2.1
Severity
1 finding on this tool
- mediumindirect injectionf-r6-web_search_advanced_exa
Tool `web_search_advanced_exa` fetches external web content -- indirect-injection surface
Description: "Advanced search with filters, domains, dates, highlights, summaries, and subpage crawling" -- 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 T0051CAST-02
About this tool
web_search_advanced_exa is one of 4 tools exposed by exa-mcp-server. The server scored 98/100 overall against the capframe rule engine (source: registry). Last scanned 2026-08-19.
The findings above are emitted by the public capframe.findings.v1 schema. Disagree with one? Open an issue.