CVE-2026-22688 WeKnora has Command Injection in MCP stdio test
Authenticated users can inject commands into MCP stdio settings to execute arbitrary subprocesses on the WeKnora server.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-22688?
CVE-2026-22688 is a critical command injection vulnerability in Tencent WeKnora, published on 10 Jan 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
WeKnora is an LLM-powered framework designed for deep document understanding and semantic retrieval. Prior to version 0.2.5, there is a command injection vulnerability that allows authenticated users to inject stdio_config.command/args into MCP stdio settings, causing the server to execute subprocesses using these injected values. This issue has been patched in version 0.2.5.
Weakness: CWE-77
Which versions are affected by CVE-2026-22688?
3 open source packages ship an affected version, including github.com/Tencent/WeKnora. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
github.com/Tencent/WeKnora Go | All versions | 0.2.5 |
github.com/Tencent/WeKnora Go | All versions | 0.2.5 |
github.com/Tencent/WeKnora Go | All versions | 0.2.5 |
Products include Tencent Weknora.
How do I fix CVE-2026-22688?
Upgrade github.com/Tencent/WeKnora to 0.2.5 or later.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-22688 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-22688 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-2026-30855 WeKnora: Broken Access Control in Tenant Management
- CVE-2025-11046 Tencent WeKnora test testEmbeddingModel server-side request forgery
- CVE-2026-30858 WeKnora: DNS Rebinding Vulnerability in web_fetch Tool Allows SSRF to Internal Resources
Sources
Also known as GHSA-78h3-63c4-5fqc, GO-2026-4292.