Description
Rowboat through 0.9.1 fails to validate custom MCP server and webhook URLs, allowing authenticated users to configure arbitrary destinations. Attackers can point these URLs at internal services and cloud metadata endpoints to perform server-side request forgery and enumerate internal network topology.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| rowboatlabs | rowboat | ≤ 0.9.1 | — |
References
- GitHub Issue #621 issue-tracking
- validateHttpHttpsUrl scheme-only check technical-description
- Unvalidated webhook fetch and MCP client connect technical-description
- https://github.com/rowboatlabs/rowboat product
- VulnCheck Advisory: Rowboat through 0.9.1 Server-Side Request Forgery via Custom MCP Server third-party-advisory