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High 8.6Published May 11, 2026

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

Updated under an hour ago ()

Does this affect you?

It affects WSO2 Identity Server and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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.

CVSS
8.6 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Weakness (CWE)
CWE-400
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
WSO2
NVD analysis
Analyzed
Record last updated
May 11, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
WSO2 WSO2 Identity Server
wso2:identity_server (from the name)
from 7.0.0 before 7.0.0.121
CNA record
WSO2 WSO2 Carbon MagicLink Authenticator Module
wso2:carbon_magiclink_authenticator_module (from the name)
from 1.1.22 before 1.1.22.3; from 1.1.31 not affected
CNA record
wso2 identity_server
wso2:identity_server
from 7.0.0 before 7.0.0.121
NVD

References

References

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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