CVE-2026-86122: Rowboatlabs Rowboat

Medium severity, CVSS 5.0. EPSS: 0.4% chance of exploitation in the next 30 days.

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

• Rowboatlabs Rowboat: up to and including 0.9.1

Published 2026-09-05. Last modified 2026-09-23.