CVE-2025-66419 MaxKB vulnerable to privilege escalation through sandbox bypass

High 8.8 Published 11 Dec 2025 Updated 18 Dec 2025

Attackers can escape the sandbox and escalate privileges in MaxKB via a race condition in the tool module.

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-2025-66419?

CVE-2025-66419 is a high-severity vulnerability in 1Panel-dev MaxKB, published on 11 Dec 2025. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

MaxKB is an open-source AI assistant for enterprise. In versions 2.3.1 and below, the tool module allows an attacker to escape the sandbox environment and escalate privileges under certain concurrent conditions. This issue is fixed in version 2.4.0.

Weakness: CWE-362

Which versions are affected by CVE-2025-66419?

It affects 1 product.

Products include Maxkb Maxkb.

How do I fix CVE-2025-66419?

No fix has been published for CVE-2025-66419 yet. Limit exposure of the affected software until one is available.

Is CVE-2025-66419 being exploited?

There is no known exploitation of CVE-2025-66419 in the wild and no public exploit code.

Sources

Also known as GHSA-f9qm-2pxq-fx6c.