CVE-2026-7443 Details
Description
A weakness has been identified in BurtTheCoder mcp-dnstwist up to 1.0.4. Affected by this vulnerability is the function fuzz_domain of the file src/index.ts of the component MCP Interface. Executing a manipulation of the argument Request can lead to os command injection. The attack may be launched remotely. The exploit has been made available to the public and could be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.
An OS command injection vulnerability has been identified in BurtTheCoder mcp-dnstwist version 1.0.4. The issue resides in the fuzz_domain function within the MCP Interface component, specifically in the src/index.ts file. The vulnerability allows for the injection of shell metacharacters into the nameservers parameter, which is then executed as a command without proper validation or escaping. This flaw can be exploited remotely, potentially leading to arbitrary command execution on the server hosting the MCP interface.
Users are advised to update to version 1.0.5 or later, where this vulnerability has been fixed. If an immediate update is not possible, consider restricting access to the 'fuzz_domain' tool and applying strict validation to user-controlled parameters before execution.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Apr 29, 2026CISA-ADP
Assessed May 4, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/BruceJqs/public_exp/issues/22 | [email protected] | ExploitIssue TrackingTechnical Description |
| https://github.com/BurtTheCoder/mcp-dnstwist/ | [email protected] | ProductSource CodeVendor |
| https://github.com/BurtTheCoder/mcp-dnstwist/issues/13 | [email protected] | Issue TrackingTechnical DescriptionVendor |
| https://vuldb.com/submit/804027 | [email protected] | Permission Required |
| https://vuldb.com/vuln/360185 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/vuln/360185/cti | [email protected] | AdvisoryPermission Required |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-77 | Improper Neutralization of Special Elements used in a Command ('Command Injection') | [email protected] |
| CWE-78 | Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| BurtTheCoder mcp-dnstwist | All versions |
CPE
Remediation
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Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 29, 2026 | New CVE Received | [email protected] |