CVE-2026-6108 1Panel-dev MaxKB Model Context Protocol Node base_mcp_node.py execute os command injection
Remote attackers can execute arbitrary OS commands via the Model Context Protocol Node in MaxKB, requiring an upgrade to mitigate.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-6108?
CVE-2026-6108 is a medium-severity command injection vulnerability in 1Panel-dev MaxKB, published on 12 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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.
Which versions are affected by CVE-2026-6108?
How do I fix CVE-2026-6108?
No fix has been published for CVE-2026-6108 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-6108 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-6108 exists.
Sources
Also known as GHSA-w5c9-9mc5-jw55.