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CVE-2026-8786— Tencent WeKnora Config API Endpoint initialization.go getKnowledgeBaseForInitialization authorization

Quick assessment

Affected
Tencent WeKnora
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Tencent WeKnora是中国腾讯（Tencent）公司的一个企业级LLM知识库与RAG平台。 Tencent WeKnora 0.3.6及之前版本存在授权问题漏洞，该漏洞源于Config API Endpoint组件中文件internal/handler/initialization.go的函数getKnowledgeBaseForInitialization对参数kbId的操作导致授权绕过，可能允许远程攻击。

CVSS 6.3 · Medium EPSS 0.42% · P34

Possible ATT&CK Techniques 1 AI

T1078 · Valid Accounts

Affected Version Matrix 7

VendorProduct Version RangeStatus
Tencent WeKnora 0.3.0 affected
0.3.1 affected
0.3.2 affected
0.3.3 affected
0.3.4 affected
0.3.5 affected
0.3.6 affected
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I. Basic Information for CVE-2026-8786

Vulnerability Information
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Vulnerability Title
Tencent WeKnora Config API Endpoint initialization.go getKnowledgeBaseForInitialization authorization
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability has been found in Tencent WeKnora up to 0.3.6. Affected by this issue is the function getKnowledgeBaseForInitialization of the file internal/handler/initialization.go of the component Config API Endpoint. The manipulation of the argument kbId leads to authorization bypass. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5
Vulnerability Title
Tencent WeKnora 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Tencent WeKnora是中国腾讯（Tencent）公司的一个企业级LLM知识库与RAG平台。 Tencent WeKnora 0.3.6及之前版本存在授权问题漏洞，该漏洞源于Config API Endpoint组件中文件internal/handler/initialization.go的函数getKnowledgeBaseForInitialization对参数kbId的操作导致授权绕过，可能允许远程攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Tencent WeKnora 0.3.0 cpe:2.3:a:tencent:weknora:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-8786

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III. Intelligence Information for CVE-2026-8786

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Proof of Concept for CVE-2026-8786 (1)

IV. Related Vulnerabilities

Same product: WeKnora
Same vendor: Tencent
Same weakness: CWE-639

V. Comments for CVE-2026-8786

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