🛡️ CVE-2026-59098

🟡 CVSS 6.5 — Medium ✅ No Known Exploit CWE-639 NVD
6.5
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity none, availability none.

Weakness class

CVE-2026-59098 is classified as CWE-639: Authorization Bypass Through User-Controlled Key. An object is selected by an identifier from the request without checking the caller owns it.

Affected software

CVE-2026-59098 is recorded against 1 package.

  • unknown

Timeline and source

Published on 2 July 2026 and last revised on 14 July 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

github.com
github.com
github.com
www.vulncheck.com

Details

Severity MEDIUM
CVSS Score 6.5
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CWE CWE-639
Public Exploit ✅ No
Source NVD
Published 2026-07-02
Updated 2026-08-11
Modified 2026-07-14
Fix URL N/A

Affected Packages

Software From version Fixed in
unknown — —

Similar Threats

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