---
id: CVE-2025-10470
title: >-
  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 co…
summary: >-
  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 co…
severity: high
cvss: 8.6
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H'
cwe:
  - CWE-400
vendor: wso2
product: identity_server
affected:
  - 'identity_server >= 7.0.0, < 7.0.0.121'
patched:
  - identity_server 7.0.0.121
published: '2026-05-11'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T13:10:00.187'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-10470'
references:
  - url: >-
      https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2026/WSO2-2025-4469/
    label: ed10eef1-636d-4fbe-9993-6890dfa878f8
tags:
  - nvd
epss: 0.00317
epssPercentile: 0.22827
ingestedAt: '2026-10-14T13:30:58.493Z'
---

## Overview

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.

## Affected

- `identity_server >= 7.0.0, < 7.0.0.121`

## Remediation

Upgrade past the affected range:

- `identity_server 7.0.0.121`