CVE-2026-87669
Received Received - Intake

Missing Authorization Check in Brocade Fabric OS REST API

Publication date: 2026-10-08

Last updated on: 2026-10-08

Assigner: Brocade Communications Systems, LLC

Description
A missing authorization check in Brocade Fabric OS versions before 10.0.1 REST API interface of affected platform releases allows an authenticated user, regardless of their assigned role or administrative scope, to retrieve complete Monitoring and Alerting Policy Suite (MAPS) violation data across all logical switches. An attacker with low-privilege API access can leverage this endpoint to dump chassis-wide system health metrics, port performance violations, and configuration data without appropriate privileges.

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Meta Information

Published
2026-10-08
Last Modified
2026-10-08
Generated
2026-10-08
AI Q&A
2026-10-08
EPSS Evaluated
N/A
NVD
CVE-2026-87669
EUVD
EUVD-2026-94673

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
Brocade Fabric OS 0

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-862 The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

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Executive Summary

This vulnerability is a missing authorization check in Brocade Fabric OS versions before 10.0.1. It affects the REST API interface and allows an authenticated user, even with low privileges, to retrieve complete Monitoring and Alerting Policy Suite (MAPS) violation data across all logical switches. This means an attacker could access system health metrics, port performance violations, and configuration data without proper authorization.

Detection Guidance

This vulnerability involves unauthorized access to MAPS violation data via Brocade Fabric OS REST API. To detect it, monitor API logs for unusual requests to endpoints retrieving chassis-wide system health metrics. Check for low-privilege users accessing high-sensitivity data. Verify if Fabric OS versions are before 10.0.1 and ensure proper role-based access controls are enforced.

Impact Analysis

An attacker with low-privilege API access could exploit this to dump sensitive system data, including chassis-wide health metrics and configuration details. This could lead to unauthorized access to critical infrastructure information, potential data breaches, or further attacks leveraging exposed system details.

Compliance Impact

This vulnerability could potentially impact compliance with GDPR and HIPAA by allowing unauthorized access to sensitive system health metrics, port performance violations, and configuration data. Unauthorized data exposure may violate data protection requirements under these regulations.

Mitigation Strategies

Upgrade Brocade Fabric OS to version 10.0.1 or later to address the missing authorization check in the REST API interface.

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