CVE-2025-10470 HIGH

CVE-2025-10470: Denial-of-Service via Magic Link Authentication in WSO2 Identity Server Allows Service Unavailability

Vendor Wso2
Product WSO2 Identity Server
Weakness CWE-400
Published May 11, 2026
Last update May 11, 2026

CVSS base score

8.6/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

What the vulnerability does

01Description

The Magic Link authentication flow accepts multiple invalid authentication requests without adequate rate limiting or resource control, leading to uncontrolled memory usage growth. This vulnerability can result in a denial-of-service condition, causing service unavailability for deployments that utilize the Magic Link authenticator. The impact is limited to these specific deployments and requires repeated invalid authentication attempts to trigger.

Key dates

02Disclosure timeline

May 11, 2026 CVE published
May 11, 2026 Record updated