---
id: CVE-2026-59100
title: >-
  LobeChat 2.2.9 - Broken Object Level Authorization via Chat-Group Agent
  Operations
summary: >-
  LobeChat through 2.2.9 contains a broken object level authorization
  vulnerability that allows authenticated attackers to access and modify other
  users' chat-group agent data by supplying arbitrary group identifiers.
  Attackers can invoke …
severity: medium
cvss: 5
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L'
cvssSource: cna
cwe:
  - CWE-639
vendor: lobehub
product: lobehub
affected:
  - lobehub <= 2.2.9
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-07-06T16:20:42.491534Z'
exploitAvailable: true
published: '2026-07-02'
updated: '2026-11-08'
sourceUpdated: '2026-11-08T14:07:21.173Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-59100'
references:
  - url: 'https://github.com/lobehub/lobehub/issues/16537'
    label: Researcher Disclosure
  - url: 'https://github.com/lobehub/lobehub/pull/16586'
    label: Fix PR
  - url: >-
      https://github.com/lobehub/lobehub/commit/9ed5a7e20d8a67c431265f5a252e9559d9920907
    label: Fix Commit
  - url: >-
      https://www.vulncheck.com/advisories/lobechat-broken-object-level-authorization-via-chat-group-agent-operations
tags:
  - cve.org
  - exploit-available
epss: 0.00291
epssPercentile: 0.21773
ingestedAt: '2026-11-08T14:51:22.280Z'
---

## Overview

LobeChat through 2.2.9 contains a broken object level authorization vulnerability that allows authenticated attackers to access and modify other users' chat-group agent data by supplying arbitrary group identifiers. Attackers can invoke the getGroupAgents, updateAgentInGroup, and removeAgentsFromGroup operations without user-scoped predicates to read agent listings, modify agent roles and ordering, and remove agents from chat groups belonging to other users.

## Affected

- `lobehub <= 2.2.9`

## Remediation

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