n8n Vulnerable to Unauthenticated Denial of Service via MCP Client Registration
| Reporter | Title | Published | Views | Family All 17 |
|---|---|---|---|---|
 | CVE-2026-42236 | 4 May 202618:38 | – | attackerkb |
 | N8n MCP Client Registration DoS | 18 May 202600:00 | – | bdu_fstec |
 | CVE-2026-42236 | 4 May 202620:56 | – | circl |
 | n8n security vulnerabilities | 4 May 202600:00 | – | cnnvd |
 | CVE-2026-42236 | 4 May 202618:38 | – | cve |
 | CVE-2026-42236 n8n: Unauthenticated Denial of Service via MCP Client Registration | 4 May 202618:38 | – | cvelist |
 | EUVD-2026-27111 | 4 May 202618:38 | – | euvd |
 | CVE-2026-42236 | 4 May 202618:38 | – | mend |
 | CVE-2026-42236 | 4 May 202619:16 | – | nvd |
 | GHSA-49M9-PGWW-9VQ6 n8n Vulnerable to Unauthenticated Denial of Service via MCP Client Registration | 29 Apr 202621:19 | – | osv_ghsa |
10
Data
Build on a solid foundation with Vulners data
We provide the essential building blocks for cybersecurity solutions with comprehensive, structured, and constantly updated vulnerability and exploits data
Api
Power your application with Vulners API
The Vulners REST API offers reliable, high-performance access to vulnerability intelligence, with 99.9% SLA uptime and CDN-backed data delivery for seamless global access
App
Assess and manage vulnerabilities with Vulners tools
Built on top of Vulners' database and SDK, end-user solutions give security professionals and developers lightweight and powerful tools for vulnerability remediation
08 May 2026 01:31Current
7High risk
Vulners AI Score7
CVSS 3.17.5
CVSS 48.7
EPSS0.00487
SSVC