---
id: CVE-2025-66446
title: MaxKB is an open-source AI assistant for enterprise
summary: >-
  MaxKB is an open-source AI assistant for enterprise. Versions 2.3.1 and below
  have improper file permissions which allow attackers to overwrite the built-in
  dynamic linker and other critical files, potentially resulting in privilege
  esca…
severity: high
cvss: 8.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-362
vendor: maxkb
product: maxkb
affected:
  - maxkb < 2.4.0
patched:
  - maxkb 2.4.0
published: '2025-12-11'
updated: '2026-10-07'
sourceUpdated: '2026-10-07T20:10:01.970'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-66446'
references:
  - url: 'https://github.com/1Panel-dev/MaxKB/releases/tag/v2.4.0'
    label: security-advisories@github.com
  - url: >-
      https://github.com/1Panel-dev/MaxKB/security/advisories/GHSA-5xx2-3q9w-jpgf
    label: security-advisories@github.com
tags:
  - nvd
epss: 0.00349
epssPercentile: 0.26349
ingestedAt: '2026-10-07T20:46:46.868Z'
---

## Overview

MaxKB is an open-source AI assistant for enterprise. Versions 2.3.1 and below have improper file permissions which allow attackers to overwrite the built-in dynamic linker and other critical files, potentially resulting in privilege escalation. This issue is fixed in version 2.4.0.

## Affected

- `maxkb < 2.4.0`

## Remediation

Upgrade past the affected range:

- `maxkb 2.4.0`