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

Quick assessment

Affected
WSO2 WSO2 Identity Server
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WSO2 Identity Server（IS）是美国WSO2公司的一款身份认证服务器。 WSO2 Identity Server存在资源管理错误漏洞，该漏洞源于接受多个无效认证请求但未进行充分的速率限制或资源控制，可能导致内存使用无限制增长，造成拒绝服务。

CVSS 8.6 · High EPSS 0.32% · P22

Affected Version Matrix 3

VendorProduct Version RangeStatus
WSO2 WSO2 Carbon MagicLink Authenticator Module 1.1.22< 1.1.22.3 affected
1.1.31≤ * unaffected
WSO2 WSO2 Identity Server 7.0.0< 7.0.0.121 affected
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I. Basic Information for CVE-2025-10470

Vulnerability Information
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Vulnerability Title
Denial-of-Service via Magic Link Authentication in WSO2 Identity Server Allows Service Unavailability
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Source: CVE Program / CVE List V5
Vulnerability Title
WSO2 Identity Server 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WSO2 Identity Server（IS）是美国WSO2公司的一款身份认证服务器。 WSO2 Identity Server存在资源管理错误漏洞，该漏洞源于接受多个无效认证请求但未进行充分的速率限制或资源控制，可能导致内存使用无限制增长，造成拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
WSO2 WSO2 Identity Server 7.0.0 ~ 7.0.0.121 -
WSO2 WSO2 Carbon MagicLink Authenticator Module 1.1.22 ~ 1.1.22.3 -

II. Public POCs for CVE-2025-10470

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III. Intelligence Information for CVE-2025-10470

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Other References for CVE-2025-10470 (1)

Same Patch Batch · WSO2 · 2026-05-11 · 6 CVEs total

CVE-2025-9973 6.4 MEDIUM Authorization Bypass via Adaptive Authentication in WSO2 Identity Server Allows Cross-Orga
CVE-2025-8325 6.3 MEDIUM Improper Access Control via Gateway API in Multiple WSO2 Products Allows Unauthorized Oper
CVE-2024-0391 5.3 MEDIUM Username Enumeration via Email OTP Flow in Multiple WSO2 Products Allows User Account Disc
CVE-2025-8154 5.3 MEDIUM HTTP Header Injection via Webhook API in Multiple WSO2 Products Allows Response Header Man
CVE-2025-10908 Account Lock Bypass via Magic Link or Pass Key Authentication in WSO2 Identity Server Allo

IV. Related Vulnerabilities

Same product: WSO2 Identity Server
Same vendor: WSO2
Same weakness: CWE-400

V. Comments for CVE-2025-10470

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