CVE-2025-54073: Command Injection (CVSS 7.5)

Description

mcp-package-docs is an MCP (Model Context Protocol) server that provides LLMs with efficient access to package documentation across multiple programming languages and language server protocol (LSP) capabilities. A command injection vulnerability exists in the `mcp-package-docs` MCP Server prior to the fix in commit cb4ad49615275379fd6f2f1cf1ec4731eec56eb9. 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.). Commit cb4ad49615275379fd6f2f1cf1ec4731eec56eb9 in version 0.1.27 contains a fix for the issue, but upgrading to 0.1.28 is recommended.

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CVSS v3.1 Score

7.5

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-77 CWE-77

References

Other References

https://equixly.com/blog/2025/03/29/mcp-server-new-security-nightmare https://github.com/advisories/GHSA-3q26-f695-pp76 https://github.com/advisories/GHSA-5w57-2ccq-8w95 https://github.com/advisories/GHSA-gjv4-ghm7-q58q https://github.com/sammcj/mcp-package-docs/commit/cb4ad49615275379fd6f2f1cf1ec4731eec56eb9 https://github.com/sammcj/mcp-package-docs/releases/tag/v0.1.27 https://github.com/sammcj/mcp-package-docs/releases/tag/v0.1.28 https://github.com/sammcj/mcp-package-docs/security/advisories/GHSA-vf9j-h32g-2764 https://invariantlabs.ai/blog/mcp-github-vulnerability https://github.com/advisories/GHSA-3q26-f695-pp76

Frequently Asked Questions

What is CVE-2025-54073? +

mcp-package-docs is an MCP (Model Context Protocol) server that provides LLMs with efficient access to package documentation across multiple programming languages and language server protocol (LSP) capabilities. A command injection vulnerability exists in the `mcp-package-docs` MCP Server prior to the fix in commit cb4ad49615275379fd6f2f1cf1ec4731eec56eb9. 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.). Commit cb4ad49615275379fd6f2f1cf1ec4731eec56eb9 in version 0.1.27 contains a fix for the issue, but upgrading to 0.1.28 is recommended. It has a CVSS v3.1 base score of 7.5 (HIGH).

How severe is CVE-2025-54073? +

CVE-2025-54073 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

How do I check if I'm vulnerable to CVE-2025-54073? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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