CVE-2026-59100 LobeChat 2.2.9 - Broken Object Level Authorization via Chat-Group Agent Operations
Authenticated attackers can read and modify other users' chat-group agent data by manipulating group identifiers in LobeChat.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-59100?
CVE-2026-59100 is a low-severity missing authorization vulnerability in lobehub, published on 2 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Weakness: CWE-639
Which versions are affected by CVE-2026-59100?
How do I fix CVE-2026-59100?
No fix has been published for CVE-2026-59100 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-59100 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-59100 exists.
Sources
Also known as GHSA-hgpq-q5hf-7r77.