CVE-2025-12150
Org.keycloak/keycloak-services: webauthn attestation statement verification bypass
- Published
- Updated
- Reserved
- Assigned by
- redhat
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.
Timeline
ID reserved
By redhat
- 4 months later
· 4 months later
Published
- 5 months later
· 5 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| redhatCNA (assigner) | 3.1 | Low3.1 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N |
| NVDNVD · Analyzed | 3.1 | Low3.1 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N |
- EPSS (exploitation in 30 days)
- 0.23% · top 86% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Low 3.1.
Weakness
Affected products
- affected < 26.4.4
Red Hat · Red Hat build of Keycloak 26.2
- unaffected 26.2.11-1 – < *
Red Hat · Red Hat build of Keycloak 26.2
- unaffected 26.2-12 – < *
Red Hat · Red Hat build of Keycloak 26.2
- unaffected 26.2-12 – < *
Red Hat · Red Hat build of Keycloak 26.2.11
All versions: unaffected
Red Hat · Red Hat build of Keycloak 26.4
- unaffected 26.4.4-1 – < *
Red Hat · Red Hat build of Keycloak 26.4
- unaffected 26.4-3 – < *
Red Hat · Red Hat build of Keycloak 26.4
- unaffected 26.4-3 – < *
Red Hat · Red Hat build of Keycloak 26.4.4
All versions: unaffected
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- Mavenorg.keycloak:keycloak-servicesGHSA-7g5x-9c4v-4w5r (opens in a new tab)
What to do
Workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
References (7)
- RHSA-2025:21370 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
- RHSA-2025:21371 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
- RHSA-2025:22088 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
- RHSA-2025:22089 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2025-12150 (opens in a new tab)vdb-entryx_refsource_REDHAT
- RHBZ#2406192 (opens in a new tab)issue-trackingx_refsource_REDHAT
- https://github.com/keycloak/keycloak/issues/43723 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-7g5x-9c4v-4w5r (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2025-12150)Record last updated .