CVE-2026-30857

WeKnora: Unauthorized Cross‑Tenant Knowledge Base Cloning

State: Published
Severity: 5.3 Medium
Published: Mar 7, 2026
Updated: Mar 9, 2026
Reserved: Mar 5, 2026

Description

WeKnora is an LLM-powered framework designed for deep document understanding and semantic retrieval. Prior to version 0.3.0, a cross-tenant authorization bypass in the knowledge base copy endpoint allows any authenticated user to clone (duplicate) another tenant’s knowledge base into their own tenant by knowing/guessing the source knowledge base ID. This enables bulk data exfiltration (document/FAQ content) across tenants. This issue has been patched in version 0.3.0.

Scores

CVSS	Score	Vector	Source
3.1	5.3 Medium	CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N	GitHub_M

Weaknesses

CWE-639 Authorization Bypass Through User-Controlled Key

Affected Products

Product	Versions
WeKnoraTencent	< 0.3.0Affected

References

https://github.com/Tencent/WeKnora/security/advisories/GHSA-8rf9-c59g-f82f

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