CVE-2026-8786 Tencent WeKnora Config API Endpoint initialization.go getKnowledgeBaseForInitialization authorization
Attackers can bypass authorization checks in the Config API to access knowledge bases without proper permissions.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-8786?
CVE-2026-8786 is a medium-severity missing authorization vulnerability in Tencent WeKnora, published on 18 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Which versions are affected by CVE-2026-8786?
It affects 1 product.
Products include Tencent Weknora.
How do I fix CVE-2026-8786?
No fix has been published for CVE-2026-8786 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-8786 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-8786 exists.
Other vulnerabilities in Tencent WeKnora
- CVE-2026-30860 WeKnora: Remote Code Execution via SQL Injection Bypass in AI Database Query Tool
- CVE-2026-30861 WeKnora: Remote Code Execution (RCE) via Command Injection in MCP Stdio Configuration Validation
- CVE-2026-22688 WeKnora has Command Injection in MCP stdio test
- CVE-2026-30855 WeKnora: Broken Access Control in Tenant Management
- CVE-2025-11046 Tencent WeKnora test testEmbeddingModel server-side request forgery
Sources
Also known as GHSA-4cvj-xf75-4wv6.