CVE-2026-59100CWE-639

LobeChat 2.2.9 - Broken Object Level Authorization via Chat-Group Agent Operations

Low · published July 2, 2026

CVSS v4.0
2.3
EPSS
0%
Percentile
20.5
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
2.3 · LOW
Vector
CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
EPSS
0.00291 · 20.5th percentile
Weakness
CWE-639 · Authorization Bypass Through User-Controlled Key
Published
2026-07-02T19:43Z
EPSS history
Timeline
  • 02 JUL 19:43Z
    LobeChat 2.2.9 - Broken Object Level Authorization via Chat-Group Agent Operations
    cvelistv5