CVE-2026-86085: CWE-862: Missing Authorization in n8n-io n8n
A missing authorization vulnerability in n8n workflow automation platform versions prior to 2.37.7 and 2.38.2 allows users with role:manageProject permission to access member names and email addresses of projects they cannot list. This occurs because the affected endpoints did not properly check the project:list scope. The issue is fixed in versions 2.37.7 and 2.38.2.
AI Analysis
Technical Summary
The vulnerability (CVE-2026-86085) in n8n affects the /rest/roles/:slug/assignments and /rest/roles/:slug/assignments/:projectId/members endpoints. These endpoints only verified if the caller had permission to manage the role type but failed to check if the caller had permission to list the specified project. Consequently, a user with role:manageProject could specify a project they could not normally list and retrieve member names and email addresses associated with that project. The flaw is located in the role.controller.ts file and was addressed in n8n versions 2.37.7 and 2.38.2 by adding the missing project:list scope check.
Potential Impact
An attacker with role:manageProject privileges can access sensitive information such as member names and email addresses of projects they are not authorized to list. This could lead to unauthorized disclosure of user information within the affected n8n instances. There is no indication of privilege escalation or code execution. The CVSS 4.0 base score is 5.1 (medium severity), reflecting network attack vector, low complexity, and no user interaction required.
Mitigation Recommendations
This vulnerability is fixed in n8n versions 2.37.7 and 2.38.2. Users should upgrade to at least these versions to remediate the issue. No other mitigation or workaround is indicated.
CVE-2026-86085: CWE-862: Missing Authorization in n8n-io n8n
Description
A missing authorization vulnerability in n8n workflow automation platform versions prior to 2.37.7 and 2.38.2 allows users with role:manageProject permission to access member names and email addresses of projects they cannot list. This occurs because the affected endpoints did not properly check the project:list scope. The issue is fixed in versions 2.37.7 and 2.38.2.
CVSS v4.0
Score 5.1medium
Affected software
pkg:github/n8n-io/n8nRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability (CVE-2026-86085) in n8n affects the /rest/roles/:slug/assignments and /rest/roles/:slug/assignments/:projectId/members endpoints. These endpoints only verified if the caller had permission to manage the role type but failed to check if the caller had permission to list the specified project. Consequently, a user with role:manageProject could specify a project they could not normally list and retrieve member names and email addresses associated with that project. The flaw is located in the role.controller.ts file and was addressed in n8n versions 2.37.7 and 2.38.2 by adding the missing project:list scope check.
Potential Impact
An attacker with role:manageProject privileges can access sensitive information such as member names and email addresses of projects they are not authorized to list. This could lead to unauthorized disclosure of user information within the affected n8n instances. There is no indication of privilege escalation or code execution. The CVSS 4.0 base score is 5.1 (medium severity), reflecting network attack vector, low complexity, and no user interaction required.
Mitigation Recommendations
This vulnerability is fixed in n8n versions 2.37.7 and 2.38.2. Users should upgrade to at least these versions to remediate the issue. No other mitigation or workaround is indicated.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-09-04T19:34:03.101Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6aa13d6bacd9273b49346a80
Added to database: 09/09/2026, 11:05:15 UTC
Last enriched: 09/09/2026, 11:38:13 UTC
Last updated: 09/09/2026, 22:52:15 UTC
Views: 8
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