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CVE-2026-59098— LobeChat 2.2.9 - Cross-User Document Disclosure via Unscoped RAG Semantic Search

CVSS 6.5 · Medium
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I. Basic Information for CVE-2026-59098

Vulnerability Information

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Vulnerability Title
LobeChat 2.2.9 - Cross-User Document Disclosure via Unscoped RAG Semantic Search
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: NVD (National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
lobehublobehub 0 ~ 2.2.9 -

II. Public POCs for CVE-2026-59098

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III. Intelligence Information for CVE-2026-59098

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Patches & Fixes for CVE-2026-59098 (2)

Vendor Advisories for CVE-2026-59098 (2)

Same Patch Batch · lobehub · 2026-07-02 · 5 CVEs total

CVE-2026-590957.7 HIGHLobeChat < 2.2.10-canary.18 - SSRF via importFromUrl and fetchImageFromUrl
CVE-2026-585786.5 MEDIUMLobeChat < 2.2.10-canary.15 - Regular Expression Denial of Service in GitHub Skill Import
CVE-2026-585805.9 MEDIUMLobeChat 2.2.9 - Broken Object-Level Authorization in Message Sub-Resource Writes
CVE-2026-591005.0 MEDIUMLobeChat 2.2.9 - Broken Object Level Authorization via Chat-Group Agent Operations

IV. Related Vulnerabilities

V. Comments for CVE-2026-59098

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