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CVE-2025-69256— serverless MCP Server vulnerable to command injection in list-projects tool

Quick assessment

Affected
serverless serverless
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.

Serverless Framework是Serverless开源的一个云服务托管工具。 Serverless Framework 4.29.0版本至4.29.3之前版本存在命令注入漏洞，该漏洞源于对child_process.exec的输入参数清理不当，可能导致远程代码执行。

CVSS 7.5 · High EPSS 2.36% · P83

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter
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I. Basic Information for CVE-2025-69256

Vulnerability Information
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Vulnerability Title
serverless MCP Server vulnerable to command injection in list-projects tool
Source: CVE Program / CVE List V5
Vulnerability Description
The Serverless Framework is a framework for using AWS Lambda and other managed cloud services to build applications. Starting in version 4.29.0 and prior to version 4.29.3, a command injection vulnerability exists in the Serverless Framework's built-in MCP server package (@serverless/mcp). This vulnerability only affects users of the experimental MCP server feature (serverless mcp), which represents less than 0.1% of Serverless Framework users. The core Serverless Framework CLI and deployment functionality are not affected. The vulnerability is caused by the unsanitized use of input parameters within a call to `child_process.exec`, enabling an attacker to inject arbitrary system commands. Successful exploitation can lead to remote code execution under the server process's privileges. The server constructs and executes shell commands using unvalidated user input directly within command-line strings. This introduces the possibility of shell metacharacter injection (`|`, `>`, `&&`, etc.). Version 4.29.3 fixes the issue.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/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
Serverless Framework 命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Serverless Framework是Serverless开源的一个云服务托管工具。 Serverless Framework 4.29.0版本至4.29.3之前版本存在命令注入漏洞，该漏洞源于对child_process.exec的输入参数清理不当，可能导致远程代码执行。
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)

Affected Products

Vendor Product Affected Versions CPE Subscribe
serverless serverless >= 4.29.0, < 4.29.3 -

II. Public POCs for CVE-2025-69256

# POC Description Source Link Shenlong Link
1 Serverless Framework MCP Server (CVE-2025-69256) Base Score: 9.4/10 → CTT Enhanced Score: 9.9/10 A critical command injection vulnerability in Serverless Framework's MCP (Model Context Protocol) server enhanced with CTT temporal resonance for unprecedented exploitation reliability and evasion. https://github.com/SimoesCTT/CTT-Serverless-RCE-v1.0---Convergent-Time-Theory-Enhanced-MCP-Exploit POC Details
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Qwen3.6-35B-A3B · 8557 chars
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III. Intelligence Information for CVE-2025-69256

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Patches & Fixes for CVE-2025-69256 (1)

Vendor Advisories for CVE-2025-69256 (1)

Other References for CVE-2025-69256 (2)

IV. Related Vulnerabilities

Same product: serverless
Same weakness: CWE-77

V. Comments for CVE-2025-69256

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