@profullstack/mcp-server vulnerable to OS Command Injection in domain_lookup Module

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS

9.8 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

No dated EPSS signal available.

As published by the source; long descriptions are shortened.

<html <body <!--StartFragment--<html<head</head<body<h1Security Advisory: OS Command Injection in <codeprofullstack/mcp-server</code <codedomainlookup</code Module</h1 Field | Value -- | -- Project | profullstack/mcp-server Repository | https://github.com/profullstack/mcp-server Affected Commit | 2e8ea913573610667ad54e31dba2e8198ebf7cf9 Affected Module | mcpmodules/domainlookup Affected Endpoints | POST /domain-lookup/check, POST /domain-lookup/bulk Vulnerability Type | CWE-78: OS Command Injection CVSS 3.1 Score | 9.8 (Critical) — AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Authentication Required | None Default Network Exposure | Bind address 0.0.0.0, no global authentication middleware Validated | 2026-04-21 (initial), 2026-04-28 (re-confirmed) <hr <h2Summary</h2 <pThe <codedomainlookup</code module assembles a shell command string by concatenating user-controlled input (<codedomains</code / <codekeywords</code) and passes it to <codeexecAsync()</code. Both HTTP endpoints reach the same…

Published by the source

9 May 2026, 00:42 UTC

Last modified by the source

9 May 2026, 00:49 UTC

Source last checked

26 Oct 2026, 12:51 UTC

1. Revision 3 · amended · 26 Oct 2026

   Amended from ghsa record GHSA-v6wj-c83f-v46x

2. Revision 2 · amended · 24 Oct 2026

   Amended from osv record GHSA-v6wj-c83f-v46x

3. Revision 1 · created · 23 Oct 2026

   Published from ghsa record GHSA-v6wj-c83f-v46x

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# Patch Next advisory brief: GHSA-v6wj-c83f-v46x

Advisory: @profullstack/mcp-server vulnerable to OS Command Injection in domain_lookup Module
IDs: GHSA-v6wj-c83f-v46x
Record: https://patchnext.com/advisories/ghsa-v6wj-c83f-v46x (revision 3, source checked 26 Oct 2026, 12:51 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Critical (CVSS 9.8)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor response not established. A vendor fix does not mean a deployment is fixed.

## Affected components
- npm @profullstack/mcp-server: affected <= 1.4.12

## Suggested inspection (read-only)
- `npm ls @profullstack/mcp-server --all`: lists every installed copy and version, including transitive ones. Run in the project root after `npm ci`.

## Supported action
No complete vendor fix is recorded. Follow the primary source's mitigation guidance and check this record again before closing anything.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on @profullstack/mcp-server.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://github.com/advisories/GHSA-v6wj-c83f-v46x (GitHub-reviewed advisory GHSA-v6wj-c83f-v46x lists affected ranges: npm @profullstack/mcp-server >=0 <=1.4.12)
- Verified: https://osv.dev/vulnerability/GHSA-v6wj-c83f-v46x (OSV record GHSA-v6wj-c83f-v46x lists affected ranges: npm @profullstack/mcp-server >=0 <=1.4.12)

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