CVE-2025-54073
A command injection vulnerability exists in the `mcp-package-docs` MCP Server prior to the fix in commit cb4ad49615275379fd6f2f1cf1ec4731eec56eb9.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 11.3%, higher than 96% of all known CVEs. Patch or mitigate before the next change window.
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.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 11.29% probability · 96th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-77
- Source
- security-advisories@github.com
EPSS moved from 11.3% on 19 October 2026 to 11.3% on 26 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
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
- https://github.com/advisories/GHSA-5w57-2ccq-8w95
- https://github.com/advisories/GHSA-gjv4-ghm7-q58q
- https://github.com/sammcj/mcp-package-docs/security/advisories/GHSA-vf9j-h32g-2764
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.