CVE-2025-12150

Name: CVE-2025-12150
Creator: NVD / NIST
Published: 2026-02-27T09:16:15.227+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

LOWCVSS 3.1/10EPSS 0.20%

Last modified Jun 17, 2026

CVE-2025-12150 is a low-severity vulnerability rated 3.1/10 on the CVSS scale. A flaw was found in Keycloak’s WebAuthn registration component. This vulnerability allows an attacker to bypass the configured attestation policy and register untrusted or forged authenticators via submission of an attestation object with fmt: "none", even when the realm is configured to require direct attestation. EPSS estimates a 0.20% chance of exploitation in the next 30 days.

Description

A flaw was found in Keycloak’s WebAuthn registration component. This vulnerability allows an attacker to bypass the configured attestation policy and register untrusted or forged authenticators via submission of an attestation object with fmt: "none", even when the realm is configured to require direct attestation. This can lead to weakened authentication integrity and unauthorized authenticator registration.

Metrics

CVSS 3.1

3.1/10

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N

EPSS Probability

0.20%

10.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-347

Affected Software

Vendor	Product	Versions
Redhat	Build Of Keycloak	< 26.4.4
Redhat	Build Of Keycloak	All versions
Redhat	Keycloak	24.0.2

References

https://access.redhat.com/errata/RHSA-2025:21370Vendor Advisory
https://access.redhat.com/errata/RHSA-2025:21371Vendor Advisory
https://access.redhat.com/errata/RHSA-2025:22088Vendor Advisory
https://access.redhat.com/errata/RHSA-2025:22089Vendor Advisory
https://access.redhat.com/security/cve/CVE-2025-12150Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2406192Issue Tracking
https://github.com/keycloak/keycloak/issues/43723Issue Tracking

Timeline

Published: Feb 27, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-12150?

How severe is CVE-2025-12150?

CVE-2025-12150 has a CVSS score of 3.1/10 (LOW severity). The EPSS model estimates a 0.20% probability of exploitation in the next 30 days.

How do I fix CVE-2025-12150?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-12150?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST