---
id: CVE-2026-79917
title: MaxKB is an open-source AI assistant for enterprise
summary: >-
  MaxKB is an open-source AI assistant for enterprise. In 2.7.0 through
  2.10.4-lts, POST /chat/api/{application_id}/chat/{chat_id}/share_chat verifies
  that a conversation exists but does not verify that it belongs to the
  authenticated chat…
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N'
cwe:
  - CWE-285
  - CWE-639
vendor: 1Panel-dev
product: MaxKB
affected:
  - 'MaxKB >= 2.7.0, <= 2.10.4-lts'
published: '2026-09-21'
updated: '2026-09-22'
sourceUpdated: '2026-09-22T16:17:57.303'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-79917'
references:
  - url: >-
      https://github.com/1Panel-dev/MaxKB/security/advisories/GHSA-m8gr-554p-8r82
    label: security-advisories@github.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-22T14:12:18.746328Z'
ingestedAt: '2026-09-21T20:52:58.293Z'
epss: 0.00212
epssPercentile: 0.1174
---

## Overview

MaxKB is an open-source AI assistant for enterprise. In 2.7.0 through 2.10.4-lts, POST /chat/api/{application_id}/chat/{chat_id}/share_chat verifies that a conversation exists but does not verify that it belongs to the authenticated chat_user_id or to the application bound to the caller's token. An attacker with any chat token and a known victim chat_id can create an unauthenticated public ChatShareLink exposing the victim's conversation and can create PublicFileAccess state that makes associated files retrievable without credentials, with no available revoke path. No fixed version is available as of this review.

## Remediation

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