CVE-2026-30857

🔶 medium

Summary

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.

CVSS Score

5.3

Medium

EPSS Score

0.0

Exploit Probability

Published Date

2026-03-07

First Seen: 2026-03-08

📊 Relative Risk Intelligence

This CVE is Lower Risk - more severe than 19.8% of all 326,604 vulnerabilities in our database.

#262,086

Below average severity

Severity Percentile

🎯 CISA SSVC Assessment Updated: Mar 9, 2026

🔍 Exploitation Status

Poc

Proof-of-concept available

⚙️ Automatable

Requires human interaction

💥 Technical Impact

Partial

Limited system impact

SSVC data provided by CISA

Last Modified 2026-03-09

Source NVD 🔗

CVSS Vector 3.1 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

CWE IDs (Weakness Types)

CWE-639

📦 Affected Products 1

Vendor	Product	Status	Affected Versions
tencent	weknora	Affected	< 0.3.0

🔗 References 1

https://github.com/Tencent/WeKnora/security/advisori...

Exploit Vendor Advisory

🔗 Related CVEs 6

CVE ID	Severity	CVSS	EPSS	Summary	Published
CVE-2026-8786	🔶 medium	6.3	0.0	A vulnerability has been found in Tencent WeKnora up to 0.3.6. Affected by this issue is the function getKnowledgeBaseFo...	2026-05-18
CVE-2026-30247	🔶 medium	5.9	0.0	WeKnora is an LLM-powered framework designed for deep document understanding and semantic retrieval. Prior to version 0....	2026-03-07
CVE-2026-30855	⚠️ high	8.8	0.1	WeKnora is an LLM-powered framework designed for deep document understanding and semantic retrieval. Prior to version 0....	2026-03-07
CVE-2026-30856	🔶 medium	5.9	0.0	WeKnora is an LLM-powered framework designed for deep document understanding and semantic retrieval. Prior to version 0....	2026-03-07
CVE-2026-30858	🔶 medium	6.5	0.1	WeKnora is an LLM-powered framework designed for deep document understanding and semantic retrieval. Prior to version 0....	2026-03-07
CVE-2026-30859	🔶 medium	5.3	0.0	WeKnora is an LLM-powered framework designed for deep document understanding and semantic retrieval. Prior to version 0....	2026-03-07

These CVEs affect the same products