What’s Vulnerable › Vulnerabilities
CVE-2026-30857: WeKnora: Unauthorized Cross‑Tenant Knowledge Base Cloning
- Severity: medium (CVSS 5.3 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.2% probability of exploitation in the next 30 days
- Public exploit or detection template: yes
- Published: 2026-03-07 · updated 2026-06-17
- Weakness: CWE-639
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.
Affected products
- Tencent WeKnora: before 0.3.0 — fixed in 0.3.0
How to fix
Upgrade to a fixed version: Tencent WeKnora 0.3.0. Check the vendor advisory for mitigations.
References
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