CVE-2026-59100

Description

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.

CVSS Vector

References

• https://github.com/lobehub/lobehub/commit/9ed5a7e20d8a67c431265f5a252e9559d9920907
• https://github.com/lobehub/lobehub/issues/16537
• https://github.com/lobehub/lobehub/pull/16586
• https://www.vulncheck.com/advisories/lobechat-broken-object-level-authorization-via-chat-group-agent-operations