What is CVE-2026-30859?

CVE-2026-30859 is a medium-severity vulnerability in Tencent Weknora, classified under Improper Access Control. CVSS score: 5.3/10. Published 2026-03-07.

How severe is CVE-2026-30859?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Vulnerability in Tencent Weknora

CVE-2026-30859

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.

EPSS: 0.002 (11.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N.

Affected products

Tencent Weknora — versions < 0.2.12

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)

Frequently asked questions

What is CVE-2026-30859?: CVE-2026-30859 is a medium-severity vulnerability in Tencent Weknora, classified under Improper Access Control. CVSS score: 5.3/10. Published 2026-03-07.
How severe is CVE-2026-30859?: Medium severity. CVSS v3 base score is 5.3 out of 10.