CVE-2026-85606

Summary

firecrawl-mcp-server 3.20.2 contains an arbitrary local file read vulnerability in the firecrawl_parse tool that accepts unconstrained filePath arguments without directory containment validation. Attackers can supply absolute paths or directory traversal sequences to read sensitive files like credentials and environment variables, which are then uploaded and returned to the model context.

Affected Software

Weaknesses

• CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

References

• https://github.com/firecrawl/firecrawl-mcp-server/issues/306
• https://github.com/firecrawl/firecrawl-mcp-server
• https://github.com/firecrawl/firecrawl-mcp-server/blob/v3.24.1/src/index.ts
• https://www.vulncheck.com/advisories/firecrawl-mcp-server-3.20.2-arbitrary-local-file-read-via-filepath

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