CVE-2025-54073mcp-package-docs vulnerable to command injection in several tools
- 7.5HighCVSS base score
- 11.4%Exploitation in 30 daysEPSS · top 3.9% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- YesPublic exploitsa reference or SSVC says so
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.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. 4 references of the record are tagged as an exploit. CISA's SSVC rates its exploitation: a proof of concept is public.
Show the exploits4
References tagged exploit4 references
- https://github.com/sammcj/mcp-package-docs/security/advisories/GHSA-vf9j-h32g-2764 (opens in a new tab)x_refsource_CONFIRMexploit
- https://github.com/advisories/GHSA-3q26-f695-pp76 (opens in a new tab)x_refsource_MISCexploit
- https://github.com/advisories/GHSA-5w57-2ccq-8w95 (opens in a new tab)x_refsource_MISCexploit
- https://github.com/advisories/GHSA-gjv4-ghm7-q58q (opens in a new tab)x_refsource_MISCexploit
Timeline
ID reserved
By GitHub_M
- 2 days later
· 2 days later
Published
- 4 days later
· 4 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_MCNA (assigner) | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVDNVD · Deferred | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 11.4% · top 3.9% of all CVEs (14 Nov 2026)
- CISA SSVC
- Exploitation: poc · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Affected products
- affected < 0.1.27
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- npmmcp-package-docsGHSA-vf9j-h32g-2764 (opens in a new tab)
References
References9
- https://github.com/sammcj/mcp-package-docs/security/advisories/GHSA-vf9j-h32g-2764 (opens in a new tab)x_refsource_CONFIRMexploit
- https://github.com/sammcj/mcp-package-docs/commit/cb4ad49615275379fd6f2f1cf1ec4731eec56eb9 (opens in a new tab)x_refsource_MISC
- https://equixly.com/blog/2025/03/29/mcp-server-new-security-nightmare (opens in a new tab)x_refsource_MISC
- https://github.com/advisories/GHSA-3q26-f695-pp76 (opens in a new tab)x_refsource_MISCexploit
- https://github.com/advisories/GHSA-5w57-2ccq-8w95 (opens in a new tab)x_refsource_MISCexploit
- https://github.com/advisories/GHSA-gjv4-ghm7-q58q (opens in a new tab)x_refsource_MISCexploit
- https://github.com/sammcj/mcp-package-docs/releases/tag/v0.1.27 (opens in a new tab)x_refsource_MISC
- https://github.com/sammcj/mcp-package-docs/releases/tag/v0.1.28 (opens in a new tab)x_refsource_MISC
- https://invariantlabs.ai/blog/mcp-github-vulnerability (opens in a new tab)x_refsource_MISC
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2025-21894 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-vf9j-h32g-2764 (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2025-54073)Record last updated .