CVE-2026-3484 Details
Description
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.
A command injection vulnerability exists in PhialsBasement nmap-mcp-server versions through bee6d23547d57ae02460022f7c78ac0893092e38. The issue arises in the Nmap CLI Command Handler, specifically within the child_process.exec function in src/index.ts. This vulnerability allows remote attackers to execute arbitrary commands by injecting shell metacharacters into the additionalFlags parameter, which is not properly validated before being passed to the command execution function.
Users are advised to update to the latest version of nmap-mcp-server, where this vulnerability has been fixed by replacing the exec() function with execFile(), and implementing a validation allowlist for the additionalFlags parameter.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Mar 4, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/PhialsBasement/nmap-mcp-server/ | [email protected] | Product |
| https://github.com/PhialsBasement/nmap-mcp-server/commit/30a6b9e1c7fa6146f51e28d6ab83a2568d9a3488 | [email protected] | Patch |
| https://github.com/PhialsBasement/nmap-mcp-server/issues/7 | [email protected] | ExploitIssue Tracking |
| https://github.com/PhialsBasement/nmap-mcp-server/issues/7#issuecomment-3814382570 | [email protected] | ExploitIssue Tracking |
| https://vuldb.com/?ctiid.348559 | [email protected] | Permissions RequiredVDB Entry |
| https://vuldb.com/?id.348559 | [email protected] | Third Party AdvisoryVDB Entry |
| https://vuldb.com/?submit.763773 | [email protected] | Third Party AdvisoryVDB Entry |
| https://vuldb.com/?submit.763777 | [email protected] | Third Party AdvisoryVDB Entry |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-77 | Improper Neutralization of Special Elements used in a Command ('Command Injection') | [email protected] |
| CWE-74 | Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') | [email protected] |
| CWE-77 | Improper Neutralization of Special Elements used in a Command ('Command Injection') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| phialsbasement mcp nmap server | <= 1.0.1 |
CPE
Remediation
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Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Mar 5, 2026 | Initial Analysis | [email protected] |
| Mar 3, 2026 | New CVE Received | [email protected] |