Broken Object Level Authorization in LobeChat Affects User Data Management
CVE-2026-59100

2.3LOW

Key Information:

Vendor

Lobehub

Status
Lobehub
Vendor
CVE Published:
2 July 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-59100?

LobeChat version 2.2.9 has a broken object level authorization vulnerability that allows authenticated users to manipulate other users' chat-group agent data. By using arbitrary group identifiers, attackers can perform unauthorized actions such as retrieving agent listings, altering agent roles and orders, and removing agents from chat groups belonging to other users. This vulnerability poses a significant risk as it undermines data integrity and can lead to unauthorized access to sensitive user information.

Affected Version(s)

lobehub 0 <= 2.2.9

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-59100 - Proof of Concept

References

https://github.com/lobehub/lobehub/issues/16537
technical-descriptionexploit
https://github.com/lobehub/lobehub/pull/16586
issue-tracking
https://github.com/lobehub/lobehub/commit/9ed5a7e20d8a67c...
patch

CVSS V4

Score:
2.3
Severity:
LOW
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
High
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

George Chen
.