Severity:
CRITICAL RISK
(9.9)
Improper Tenant Access Control (CWE-639) in n8n-MCP
CVE-2026-54052
Analyzed
Vulnerability Type
Category:
Authorization Bypass via Improper Access Control
CWE:
CWE-639;CWE-862
Impact:
Cross-Tenant Data Exposure and Destructive Actions
Severity:
CRITICAL RISK
(9.9)
CVSS Version:
3.1
Catch This CVE While Code Is Being Written
Detect vulnerable code directly in pull requests, so CVEs are fixed before merge.
Summary
Affected Context
Exploit Preconditions
Why This Happens
Potential Impact
General Mitigation Guidance
How Teams Detect Issues Like This
Frequently Asked Questions
Source
NDV
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