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CVE-2026-22688— WeKnora has Command Injection in MCP stdio test

Quick assessment

Affected
Tencent WeKnora
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WeKnora是Tencent开源的一个基于LLM的框架，具有使用RAG范式进行深度文档理解、语义检索和上下文感知答案等功能。 WeKnora 0.2.5之前版本存在命令注入漏洞，该漏洞源于对stdio_config.command/args的输入验证不足，可能导致命令注入。

CVSS 10.0 · Critical EPSS 1.96% · P80
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I. Basic Information for CVE-2026-22688

Vulnerability Information
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Vulnerability Title
WeKnora has Command Injection in MCP stdio test
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
在命令中使用的特殊元素转义处理不恰当(命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
WeKnora 命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WeKnora是Tencent开源的一个基于LLM的框架，具有使用RAG范式进行深度文档理解、语义检索和上下文感知答案等功能。 WeKnora 0.2.5之前版本存在命令注入漏洞，该漏洞源于对stdio_config.command/args的输入验证不足，可能导致命令注入。
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)

Shenlong Deep Dive — AI Deep Analysis

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Affected Products

Vendor Product Affected Versions CPE Subscribe
Tencent WeKnora < 0.2.5 -

II. Public POCs for CVE-2026-22688

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 6621 chars
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III. Intelligence Information for CVE-2026-22688

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Vendor Advisories for CVE-2026-22688 (1)

IV. Related Vulnerabilities

Same product: WeKnora
Same vendor: Tencent
Same weakness: CWE-77

V. Comments for CVE-2026-22688

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