CVE-2026-6635CWE-287

rowboatlabs rowboat tools_webhook app.py tool_call improper authentication

Medium · published April 20, 2026

CVSS v4.0
6.9
EPSS
1%
Percentile
50.9
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
6.9 · MEDIUM
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
EPSS
0.00658 · 50.9th percentile
Weakness
CWE-287 · Improper Authentication
Published
2026-04-20T11:45Z
EPSS history
Timeline
  • 20 APR 11:45Z
    rowboatlabs rowboat tools_webhook app.py tool_call improper authentication
    cvelistv5