CVE-2026-59098
Medium
Description
LobeChat through 2.2.9 contains a broken access control vulnerability in the retrieval-augmented-generation semantic search functionality that allows authenticated attackers to access other users' data by exploiting missing user-identifier predicates in the chunk model semanticSearch method. Attackers can supply arbitrary victim file or knowledge-base identifiers through the chunk retrieval and chat knowledge-base paths to retrieve text content, file names, and metadata belonging to other users.
SeverityMedium
CVSS6.5
Exploit probability—
ProductLobehub
PublishedJul 2, 2026
First seenJul 2, 2026
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| lobehub lobehub | v ≤ 2.2.9 | — |
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