RCE in 1panel-Dev Maxkb

CVE-2026-6108

A vulnerability was found in 1Panel-dev MaxKB up to 2.6.1. The affected element is the function execute of the file apps/application/flow/step_node/mcp_node/impl/base_mcp_node.py of the component Model Context Protocol Node. Performing a manipulation results in os command injection. The attack is possible to be carried out remotely. The exploit has been made public and could be used. You should upgrade the affected component. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.

Vulnerability class: Command Injection (OS Command Injection)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.

EPSS exploit prediction

EPSS: 0.015 (73.4th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 73rd percentile — 73.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-6108: held from 0.018 to 0.015.

EPSS over last 30 days · oldest: 0.018 · newest: 0.015 · change: -0.003

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-6108?
CVE-2026-6108 is a medium-severity vulnerability in 1panel-Dev Maxkb, classified under Command Injection. CVSS score: 6.3/10. Published 2026-04-12.
How severe is CVE-2026-6108?
Medium severity. CVSS v3 base score is 6.3 out of 10.