A vulnerability categorized as critical has been discovered in rowboatlabs rowboat up to 0.1.67. This impacts the function tool_call of the file apps/experimental/tools_webhook/app.py of the component tools_webhook. Such manipulation of the argument X-Tools-JWE leads to improper authentication.

This vulnerability is listed as CVE-2026-6635. The attack may be performed from remote. In addition, an exploit is available.

The vendor was contacted early about this disclosure but did not respond in any way.