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  5. CVE-2026-3484

CVE-2026-3484: MCP NMAP Server has an Injection vulnerability

March 3, 2026 (updated March 4, 2026)

A vulnerability was detected in PhialsBasement nmap-mcp-server up to bee6d23547d57ae02460022f7c78ac0893092e38. Affected by this issue is the function child_process.exec of the file src/index.ts of the component Nmap CLI Command Handler. The manipulation results in command injection. The attack may be performed from remote. This product utilizes a rolling release system for continuous delivery, and as such, version information for affected or updated releases is not disclosed. The patch is identified as 30a6b9e1c7fa6146f51e28d6ab83a2568d9a3488. It is best practice to apply a patch to resolve this issue.

References

  • github.com/PhialsBasement/nmap-mcp-server
  • github.com/PhialsBasement/nmap-mcp-server/commit/30a6b9e1c7fa6146f51e28d6ab83a2568d9a3488
  • github.com/PhialsBasement/nmap-mcp-server/issues/7
  • github.com/PhialsBasement/nmap-mcp-server/issues/7
  • github.com/advisories/GHSA-xc68-rrqc-qgq3
  • nvd.nist.gov/vuln/detail/CVE-2026-3484
  • vuldb.com/?ctiid.348559
  • vuldb.com/?id.348559
  • vuldb.com/?submit.763773
  • vuldb.com/?submit.763777

Code Behaviors & Features

Detect and mitigate CVE-2026-3484 with GitLab Dependency Scanning

Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Learn more about Dependency Scanning →

Affected versions

All versions up to 1.0.1

Solution

Unfortunately, there is no solution available yet.

Impact 6.3 MEDIUM

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

Learn more about CVSS

Weakness

  • CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

Source file

npm/mcp-nmap-server/CVE-2026-3484.yml

Spotted a mistake? Edit the file on GitLab.

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