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CVE-2026-6118— AstrBotDevs AstrBot MCP Endpoint tools.py add_mcp_server command injection

Quick assessment

Affected
AstrBotDevs AstrBot
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.

AstrBot是AstrBot开源的一个多平台 LLM 聊天机器人及开发框架。 AstrBot 4.22.1及之前版本存在命令注入漏洞，该漏洞源于MCP Endpoint组件中文件astrbot/dashboard/routes/tools.py的add_mcp_server函数对参数command处理不当，可能导致命令注入。

CVSS 6.3 · Medium EPSS 3.48% · P89

Public Exploits 1

Nuclei · 1 CVE-2026-6118.yaml [template]

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-6118

Vulnerability Information
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Vulnerability Title
AstrBotDevs AstrBot MCP Endpoint tools.py add_mcp_server command injection
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was determined in AstrBotDevs AstrBot up to 4.22.1. Impacted is the function add_mcp_server of the file astrbot/dashboard/routes/tools.py of the component MCP Endpoint. This manipulation of the argument command causes command injection. The attack is possible to be carried out remotely. The exploit has been publicly disclosed and may be utilized. The project was informed of the problem early through an issue report but has not responded yet.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
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
AstrBot 命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
AstrBot是AstrBot开源的一个多平台 LLM 聊天机器人及开发框架。 AstrBot 4.22.1及之前版本存在命令注入漏洞，该漏洞源于MCP Endpoint组件中文件astrbot/dashboard/routes/tools.py的add_mcp_server函数对参数command处理不当，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)

Affected Products

Vendor Product Affected Versions CPE Subscribe
AstrBotDevs AstrBot 4.22.0 cpe:2.3:a:astrbot:astrbot:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-6118

# POC Description Source Link Shenlong Link
1 AstrBot versions up to and including 4.22.1 contain a command injection vulnerability in the MCP server configuration endpoint. The /api/tools/mcp/add endpoint accepts arbitrary command and args fields that are passed directly to subprocess execution during the connection test, without any validation or allowlist enforcement. An attacker with dashboard access can execute arbitrary system commands with AstrBot process privileges. https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-6118.yaml POC Details
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III. Intelligence Information for CVE-2026-6118

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Vendor Advisories for CVE-2026-6118 (1)

Other References for CVE-2026-6118 (1)

Same Patch Batch · AstrBotDevs · 2026-04-12 · 3 CVEs total

CVE-2026-6119 6.3 MEDIUM AstrBotDevs AstrBot API Endpoint post_data.get server-side request forgery
CVE-2026-6117 6.3 MEDIUM AstrBotDevs AstrBot install-upload Endpoint plugin.py install_plugin_upload sandbox

IV. Related Vulnerabilities

Same product: AstrBot
Same vendor: AstrBotDevs
Same weakness: CWE-77

V. Comments for CVE-2026-6118

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