CVE-2026-59100 Details
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.
A broken object level authorization vulnerability has been identified in LobeChat versions through 2.2.9. This vulnerability allows authenticated users to access and modify chat-group agent data of other users by using arbitrary group identifiers. The affected operations, which lack user-specific authorization checks, include 'getGroupAgents', 'updateAgentInGroup', and 'removeAgentsFromGroup'. Exploitation of this vulnerability enables unauthorized reading of agent lists, modification of agent roles and order, and removal of agents from other users' chat groups.
As of version 2.2.10, this vulnerability has been addressed by scoping the 'getGroupAgents' and 'updateAgentInGroup' operations to the caller's user ID and workspace ID. However, the 'removeAgentsFromGroup' operation still lacks this user-specific authorization and needs to be updated to include it.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Jul 2, 2026CISA-ADP
Assessed Jul 6, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/lobehub/lobehub/commit/9ed5a7e20d8a67c431265f5a252e9559d9920907 | [email protected] | Source CodeVendor |
| https://github.com/lobehub/lobehub/issues/16537 | [email protected] | ExploitIssue TrackingTechnical DescriptionVendor |
| https://github.com/lobehub/lobehub/pull/16586 | [email protected] | Issue TrackingVendor |
| https://www.vulncheck.com/advisories/lobechat-broken-object-level-authorization-via-chat-group-agent-operations | [email protected] | AdvisoryRemedy |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-639 | Authorization Bypass Through User-Controlled Key | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| LobeHub | <= 2.2.9 (semver) |
CPE
Remediation
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Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 14, 2026 | CVE Modified | [email protected] |
| Jul 6, 2026 | CVE Modified | CISA-ADP |
| Jul 2, 2026 | New CVE Received | [email protected] |