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CVE-2025-10470

Denial-of-Service via Magic Link Authentication in WSO2 Identity Server Allows Service Unavailability

Published: May 11, 2026Updated: May 27, 2026 Sources: CVE List NVDCWE-400
8.6HIGH
NVD MITRE
EPSS Score
0.3%
Top 76.8%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:CC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:CScope
Changed
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
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Weaknesses

CWE-400

Affected Products

WSO2 Identity ServerWSO2
SaaSSecurity Product
Security Products / identity-access-mgmt
WSO2 Carbon MagicLink Authenticator ModuleWSO2
On-prem
Cloud & SaaS / api-gateway
identity serverwso2
On-premWeb App
Security Products / identity-access-mgmt
wso2commercialINCloud & SaaS

Exploitability

Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique
Impact
View detailed technique mapping

References

https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2026/WSO2-2025-4469/
security.docs.wso2.com

Timeline

Published
May 11, 2026
Last Updated
May 27, 2026

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