CVE-2026-85606 Details
Description
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.
An arbitrary local file read vulnerability has been identified in Firecrawl MCP Server version 3.20.2. The issue arises in the 'firecrawl_parse' tool, which accepts filePath arguments without proper directory containment validation. This lack of validation allows attackers to provide absolute paths or directory traversal sequences to access sensitive files, such as credentials and environment variables. The contents of these files are then uploaded and returned to the model context.
To address this vulnerability, it is recommended to update to Firecrawl MCP Server version 3.24.1 or later, where the issue has been fixed. Users can also manually validate and sanitize filePath inputs to ensure they do not contain absolute paths or traversal sequences before processing them.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Sep 4, 2026CISA-ADP
Assessed Sep 14, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/firecrawl/firecrawl-mcp-server | [email protected] | ProductSource CodeVendor |
| https://github.com/firecrawl/firecrawl-mcp-server/blob/v3.24.1/src/index.ts | [email protected] | Source CodeVendor |
| https://github.com/firecrawl/firecrawl-mcp-server/issues/306 | [email protected] | ExploitIssue TrackingTechnical DescriptionVendor |
| https://www.vulncheck.com/advisories/firecrawl-mcp-server-3.20.2-arbitrary-local-file-read-via-filepath | [email protected] | AdvisoryBundle |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-22 | Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| firecrawl-mcp-server | <= 3.24.0 (semver) |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 14, 2026 | CVE Modified | CISA-ADP |
| Sep 4, 2026 | New CVE Received | [email protected] |