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CVE-2026-30861— WeKnora: Remote Code Execution (RCE) via Command Injection in MCP Stdio Configuration Validation

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.

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至0.2.10之前版本存在操作系统命令注入漏洞，该漏洞源于MCP stdio配置验证存在命令注入，可能导致任意命令执行。

CVSS 10.0 · Critical EPSS 2.46% · P84
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I. Basic Information for CVE-2026-30861

Vulnerability Information
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Vulnerability Title
WeKnora: Remote Code Execution (RCE) via Command Injection in MCP Stdio Configuration Validation
Source: CVE Program / CVE List V5
Vulnerability Description
WeKnora is an LLM-powered framework designed for deep document understanding and semantic retrieval. From version 0.2.5 to before version 0.2.10, an unauthenticated remote code execution (RCE) vulnerability exists in the MCP stdio configuration validation. The application allows unrestricted user registration, meaning any attacker can create an account and exploit the command injection flaw. Despite implementing a whitelist for allowed commands (npx, uvx) and blacklists for dangerous arguments and environment variables, the validation can be bypassed using the -p flag with npx node. This allows any attacker to execute arbitrary commands with the application's privileges, leading to complete system compromise. This issue has been patched in version 0.2.10.
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
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
WeKnora 操作系统命令注入漏洞
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至0.2.10之前版本存在操作系统命令注入漏洞，该漏洞源于MCP stdio配置验证存在命令注入，可能导致任意命令执行。
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)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
Tencent WeKnora >= 0.2.5, < 0.2.10 -

II. Public POCs for CVE-2026-30861

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III. Intelligence Information for CVE-2026-30861

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Vendor Advisories for CVE-2026-30861 (1)

Same Patch Batch · Tencent · 2026-03-07 · 8 CVEs total

CVE-2026-30860 10.0 CRITICAL WeKnora: Remote Code Execution via SQL Injection Bypass in AI Database Query Tool
CVE-2026-30855 8.8 HIGH WeKnora: Broken Access Control in Tenant Management
CVE-2026-30858 6.5 MEDIUM WeKnora: DNS Rebinding Vulnerability in web_fetch Tool Allows SSRF to Internal Resources
CVE-2026-30247 5.9 MEDIUM WeKnora: SSRF via Redirection
CVE-2026-30856 5.9 MEDIUM WeKnora: Tool Execution Hijacking via Ambigous Naming Convention In MCP client and Indirec
CVE-2026-30859 5.3 MEDIUM WeKnora: Broken Access Control - Cross-Tenant Data Exposure
CVE-2026-30857 5.3 MEDIUM WeKnora: Unauthorized Cross‑Tenant Knowledge Base Cloning

IV. Related Vulnerabilities

Same product: WeKnora
Same vendor: Tencent
Same weakness: CWE-78

V. Comments for CVE-2026-30861

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