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CVE-2025-10470: The Magic Link authentication flow accepts multiple invalid authentication requests without adequate rate limi

41
This month
HIGH 8.6REMOTEUPGRADE

CVE-2025-10470 is a high-severity flaw (CVSS 8.6) affecting identity server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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 trigg

Why this priority

  • High severity
  • Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score8.6 (High)
Attack vectorNetwork (remote)
Attack complexityLow
Privileges neededNone
User interactionNone
EPSS exploit chance0.3% (top 76%)
CISA exploited listNo
WeaknessCWE-400
Published2026-05-11
Last modified2026-10-14
Publisher (CNA): WSO2 LLC · Vendor: wso2

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Last updated 2026-10-14 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

wso2 identity server UPGRADE
Affected: >= 7.0.0 and < 7.0.0.121
Fixed in: 7.0.0.121
Safe to downgrade to: a release before 7.0.0
1. Check installed version
apt-cache policy identity-server || rpm -q identity-server || identity-server --version
2. UPGRADE to 7.0.0.121 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade identity-server
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade identity-server
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
3. If no update is available yet, DOWNGRADE to a release before 7.0.0 (Debian / Ubuntu)
apt-cache madison identity-server sudo apt install identity-server=<VERSION_BEFORE_7.0.0> sudo apt-mark hold identity-server
3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list identity-server sudo dnf downgrade identity-server-<VERSION_BEFORE_7.0.0> sudo dnf versionlock add identity-server
Downgrade risk
Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.
After downgrade
Restart the service, and keep the package held until a fixed release ships.
Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-10470?

identity server: upgrade to 7.0.0.121. Exact commands for each OS are on this page.

Is CVE-2025-10470 being exploited?

CVE-2025-10470 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-10470 affect?

CVE-2025-10470 affects identity server. Severity is high (CVSS 8.6). 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 condi

How urgent is CVE-2025-10470?

Priority 41/100. High severity; Remotely exploitable, no login, no user action

Related CVEs

References

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