---
id: CVE-2026-77516
title: MaxKB is an open-source AI assistant for enterprise
summary: >-
  MaxKB is an open-source AI assistant for enterprise. From version 2.0.0
  through 2.9.2, a lowest-role workspace member denied access to a tool by
  WorkspaceUserResourcePermission can still bind its identifier through
  tool_ids, skill_tool_i…
severity: medium
cvss: 5.4
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N'
cwe:
  - CWE-639
  - CWE-862
vendor: 1Panel-dev
product: MaxKB
affected:
  - 'MaxKB >= 2.0.0, <= 2.9.2'
published: '2026-09-21'
updated: '2026-09-21'
sourceUpdated: '2026-09-21T21:17:10.280'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-77516'
references:
  - url: >-
      https://github.com/1Panel-dev/MaxKB/security/advisories/GHSA-383v-fx78-pphm
    label: security-advisories@github.com
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-21T20:52:58.294Z'
epss: 0.00276
epssPercentile: 0.1782
---

## Overview

MaxKB is an open-source AI assistant for enterprise. From version 2.0.0 through 2.9.2, a lowest-role workspace member denied access to a tool by WorkspaceUserResourcePermission can still bind its identifier through tool_ids, skill_tool_ids, or mcp_tool_ids and execute it through the agent or workflow dispatch path. The dispatch path does not reapply the per-tool grant enforced by dedicated tool routes, and tool execution decrypts server-side init_params, allowing the caller to receive credentials carried by the denied tool. No fixed version is available as of this review.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.