RCE in Burtthecoder Mcp-Dnstwist
CVE-2026-7443
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.
Vulnerability class: Command Injection (OS Command Injection)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.021 (81.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 81st percentile — 81.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.014 · newest: 0.021 · change: +0.007
Affected products
- Burtthecoder Mcp-Dnstwist — versions 1.0.0, 1.0.1, 1.0.2
Weakness classification (CWE)
References
- vuldb.com/vuln/360185 (technical-description, vdb-entry)
- vuldb.com/vuln/360185/cti (signature, permissions-required)
- vuldb.com/submit/804027 (third-party-advisory)
- github.com/BurtTheCoder/mcp-dnstwist/issues/13 (issue-tracking)
- github.com/BruceJqs/public_exp/issues/22 (issue-tracking, exploit)
- github.com/BurtTheCoder/mcp-dnstwist/ (product)
Frequently asked questions
- What is CVE-2026-7443?
- CVE-2026-7443 is a high-severity vulnerability in Burtthecoder Mcp-Dnstwist, classified under Command Injection. CVSS score: 7.3/10. Published 2026-04-29.
- How severe is CVE-2026-7443?
- High severity. CVSS v3 base score is 7.3 out of 10.