Auth bypass in Rowboatlabs Rowboat
CVE-2026-6635
A security vulnerability has been detected 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. The attack may be performed from remote. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Vulnerability class: Broken Authentication
EPSS: 0.005 (38.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.
Affected products
- Rowboatlabs Rowboat — versions 0.1.0, 0.1.1, 0.1.2
Weakness classification (CWE)
References
- cna@vuldb.com (technical-description, vdb-entry)
- cna@vuldb.com (signature, permissions-required)
- cna@vuldb.com (third-party-advisory)
- cna@vuldb.com (exploit)
Frequently asked questions
- What is CVE-2026-6635?
- CVE-2026-6635 is a high-severity vulnerability in Rowboatlabs Rowboat, classified under Improper Authentication. CVSS score: 7.3/10. Published 2026-04-20.
- How severe is CVE-2026-6635?
- High severity. CVSS v3 base score is 7.3 out of 10.