Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

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

Quick assessment

Affected
lobehub lobehub
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

LobeHub是LobeHub团队开源的一个全平台AI对话框架。 LobeHub LobeChat 2.2.9及之前版本存在授权问题漏洞，该漏洞源于检索增强生成语义搜索功能的访问控制失效，允许经过身份验证的攻击者通过利用chunk model语义搜索方法中缺失的用户标识符谓词，访问其他用户的数据。攻击者可以通过chunk检索和聊天知识库路径提供任意受害者文件或知识库标识符，检索属于其他用户的文本内容、文件名和元数据。

CVSS 6.5 · Medium EPSS 0.41% · P34

Affected Version Matrix 1

VendorProduct Version RangeStatus
lobehub lobehub ≤ 2.2.9 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-59098

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
LobeChat 2.2.9 - Cross-User Document Disclosure via Unscoped RAG Semantic Search
Source: CVE Program / CVE List V5
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: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5
Vulnerability Title
LobeHub LobeChat 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
LobeHub是LobeHub团队开源的一个全平台AI对话框架。 LobeHub LobeChat 2.2.9及之前版本存在授权问题漏洞，该漏洞源于检索增强生成语义搜索功能的访问控制失效，允许经过身份验证的攻击者通过利用chunk model语义搜索方法中缺失的用户标识符谓词，访问其他用户的数据。攻击者可以通过chunk检索和聊天知识库路径提供任意受害者文件或知识库标识符，检索属于其他用户的文本内容、文件名和元数据。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
lobehub lobehub 0 ~ 2.2.9 -

II. Public POCs for CVE-2026-59098

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-59098

请登录查看更多情报信息。

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-2026-59095 7.7 HIGH LobeChat < 2.2.10-canary.18 - SSRF via importFromUrl and fetchImageFromUrl
CVE-2026-58578 6.5 MEDIUM LobeChat < 2.2.10-canary.15 - Regular Expression Denial of Service in GitHub Skill Import
CVE-2026-58580 5.9 MEDIUM LobeChat 2.2.9 - Broken Object-Level Authorization in Message Sub-Resource Writes
CVE-2026-59100 5.0 MEDIUM LobeChat 2.2.9 - Broken Object Level Authorization via Chat-Group Agent Operations

IV. Related Vulnerabilities

Same product: lobehub
Same vendor: lobehub
Same weakness: CWE-639

V. Comments for CVE-2026-59098

No comments yet

Leave a comment