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CVE-2026-30859

WeKnora: Broken Access Control - Cross-Tenant Data Exposure

Published: Mar 7, 2026Updated: Mar 9, 2026 Sources: CVE List NVD GHSACWE-284
NVD MITRE
5.3CVSSMEDIUM
EPSS Score
0.2%
Top 88.6%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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 Vector Breakdown

AV:NAC:HPR:LUI:NS:UC:HI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:NAvailability
None
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Weaknesses

CWE-284

Affected Products

weknoratencent
Mixed
Communications / messaging-chat
WeKnoraTencent
Mixed
Communications / messaging-chat
github.com/Tencent/WeKnoraGoOSS Libraries
tencentcommercialCNCommunicationsaka tencent wechat, tencent hunyuan
gopackage-ecosystemOSS Libraries

Exploitability

Official Patch Available

References

https://github.com/Tencent/WeKnora/security/advisories/GHSA-2f4c-vrjq-rcgv
github.com
https://nvd.nist.gov/vuln/detail/CVE-2026-30859
nvd.nist.gov
https://github.com/Tencent/WeKnora
github.com

Timeline

Published
Mar 7, 2026
Last Updated
Mar 9, 2026

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