6.5

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

Analyzed
AliasesGHSA-2f4c-vrjq-rcgvGO-2026-4637
Published 07-03-2026Last modified 09-03-2026

Vulnerability summary

CVE-2026-30859 is a medium (CVSS 6.5) Improper Access Control vulnerability in tencent weknora. EPSS estimates a 0.24% chance of exploitation in the next 30 days, higher than 15.4% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 5.3, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
6.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.24%
0%100%
Low · -0.13 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 2 · Related 2
OPENSUSE-SU-2026:21483-1SUSE-SU-2026:1042-1

Timeline

  1. 07-03-2026
    PublishedVulnerability first disclosed.
  2. 09-03-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.24%

Chance of exploitation in the next 30 days

Percentile

15%

Versus all other CVEs

30-day change

Decrease -0.13 pp

From 0.37% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Github.com/Tencent1 product
  • WeKnora< 0.2.12 | All versions (No fix recorded)
Tencent1 product

2 vendors · 2 products

References

3 links