Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

Go to Calendar     Go to Press Room     Go to Newsletters subscription

Search

CVE-2026-9831

Severity CVSS v4.0:
Pending analysis
Type:
CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Publication date:
29/05/2026
Last modified:
29/05/2026

Description

A race condition in the shared Extreme Platform<br /> ONE IAM Gateway API-key authentication path could, under specific<br /> high-concurrency traffic conditions, intermittently allow requests<br /> authenticated with an Extreme Platform ONE /IAM-issued API key to receive<br /> response data for another tenant. The issue was observed through ExtremeCloud<br /> IQ/XIQ API endpoints and validated against both XIQ/XAPI and Extreme Platform ONE<br /> /Common Services API paths. XIQ-native tokens and standard OAuth/Bearer JWT<br /> authentication were not affected.

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N CVSS v3.1 Severity and Metrics:

Base Score: 6.30 MEDIUM
Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N

Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Changed
Confidentiality (C): High
Integrity (I): None
Availability (A): None

Base Score 3.x
6.30
Severity 3.x
MEDIUM

References to Advisories, Solutions, and Tools