Vulnerability · Published Mar 7, 2026 · Assigned by GitHub_M
CVE-2026-30859WeKnora: Broken Access Control - Cross-Tenant Data Exposure
Medium 5.3
In plain English
A medium-severity improper access control in WeKnora from Tencent. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 15% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Go | github.com/Tencent/WeKnora | no fix listed | GO-2026-4637 |
| Go | github.com/Tencent/WeKnora | 0.2.12 | GHSA-2f4c-vrjq-rcgv |
Affected products (as reported)
Weakness: CWE-284 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
References
- https://github.com/Tencent/WeKnora/security/advisories/GHSA-2f4c-vrjq-rcgv x_refsource_CONFIRM