Lucene search
+L
Catalog
Vendors
Products
Timeline
Vulnerabilities
Sources
Documentation
Blog
Glossary
FAQ
Brand assets
Assessment
Agents dashboard
Agent Scanning
API Scanning
Assessment API
Alerts
Email notifications
Webhook notifications
Alerts API
SBOM package analysis
API Reference
Support
Settings
Sign in

GHSA-5VFW-JC4P-FJ39 Duplicate Advisory: Member-Level Users Can Execute Other Users' MCP Server Trigger Workflows via Missing OAuth Authorization Check

🗓️ 22 Jul 2026 12:32:17Reported by GoogleType 
osv
 osv🔗 osv.dev👁 2 Views

Duplicate advisory: OAuth flaw lets member users run another's MCP workflow with owner credentials.

Related
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB		CVE-2026-65594
22 Jul 202611:21
–attackerkb
CVE		CVE-2026-65594
22 Jul 202611:21
–cve
Cvelist		CVE-2026-65594 n8n before 2.30.1 Missing OAuth Authorization Check
22 Jul 202611:21
–cvelist
EUVD		EUVD-2026-47638
22 Jul 202611:21
–euvd
Github Security Blog		Duplicate Advisory: Member-Level Users Can Execute Other Users' MCP Server Trigger Workflows via Missing OAuth Authorization Check
22 Jul 202612:32
–github
Github Security Blog		n8n: Member-Level Users Can Execute Other Users' MCP Server Trigger Workflows via Missing OAuth Authorization Check
22 Jul 202622:31
–github
NVD		CVE-2026-65594
22 Jul 202612:18
–nvd
OSV		CVE-2026-65594 n8n before 2.30.1 Missing OAuth Authorization Check
22 Jul 202611:21
–osv
OSV		GHSA-Q5XF-XHWF-CWQF n8n: Member-Level Users Can Execute Other Users' MCP Server Trigger Workflows via Missing OAuth Authorization Check
22 Jul 202622:31
–osv
Patchstack		NPM: n8n: Member-Level Users Can Execute Other Users' MCP Server Trigger Workflows via Missing OAuth Authorization Check
22 Jul 202622:31
–patchstack
Rows per page

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

Book a live demo
22 Jul 2026 22:46Current
5.3Medium risk
Vulners AI Score5.3
CVSS 45.1
OAuth flowmember usersowner credentialsworkflow accessserver trigger
2