CVE-2026-30859 MEDIUM

CVE-2026-30859: WeKnora: Broken Access Control - Cross-Tenant Data Exposure

Vendor Tencent
Product WeKnora
Weakness CWE-284
Published March 7, 2026
Last update March 9, 2026

CVSS base score

5.3/10
Attack vector Network
Attack complexity High
Privileges required Low
User interaction None
Confidentiality High
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

What the vulnerability does

01Description

WeKnora is an LLM-powered framework designed for deep document understanding and semantic retrieval. Prior to version 0.2.12, a broken access control vulnerability in the database query tool allows any authenticated tenant to read sensitive data belonging to other tenants, including API keys, model configurations, and private messages. The application fails to enforce tenant isolation on critical tables (models, messages, embeddings), enabling unauthorized cross-tenant data access with user-level authentication privileges. This issue has been patched in version 0.2.12.

Key dates

02Disclosure timeline

March 7, 2026 CVE published
March 9, 2026 Record updated