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CVE-2026-30857

WeKnora: Unauthorized Cross‑Tenant Knowledge Base Cloning

Published: Mar 7, 2026Updated: Mar 9, 2026 Sources: CVE List NVD GHSACWE-639
5.3MEDIUM
NVD MITRE
EPSS Score
0.2%
Top 87.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
Not available

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.

No summary for this CVE yet.

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-639

Affected Products

Tencent
commercial·CNaka tencent wechat, tencent hunyuan
WeKnoraMixed
Communications / messaging-chat
Go
package-ecosystem
github.com/Tencent/WeKnora
OSS Libraries
and 1 more affected products View all →

Exploitability

Official Patch Available

Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique
Initial Access
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References

https://github.com/Tencent/WeKnora/security/advisories/GHSA-8rf9-c59g-f82f
github.com
https://nvd.nist.gov/vuln/detail/CVE-2026-30857
nvd.nist.gov
https://github.com/Tencent/WeKnora
github.com
News mentions
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