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Tencent WeKnora CVE-2026-8786

| EUVD-2026-30730 LOW
Authorization Bypass Through User-Controlled Key (CWE-639)
2026-05-18 VulDB GHSA-4cvj-xf75-4wv6
2.1
CVSS 4.0

CVSS VectorNVD

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
X

Lifecycle Timeline

3
Severity Changed
May 18, 2026 - 04:22 NVD
MEDIUM LOW
CVSS changed
May 18, 2026 - 04:22 NVD
6.3 (MEDIUM) 2.1 (LOW)
Analysis Generated
May 18, 2026 - 03:45 vuln.today

DescriptionNVD

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.

AnalysisAI

Authorization bypass in Tencent WeKnora's Config API endpoint allows authenticated attackers to access unauthorized knowledge bases by manipulating the kbId parameter in getKnowledgeBaseForInitialization function. Affects all versions up to 0.3.6. …

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CVE-2026-8786 vulnerability details – vuln.today

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