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CVE-2025-12150— Org.keycloak/keycloak-services: webauthn attestation statement verification bypass

Quick assessment

Affected
Keycloak keycloak
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Keycloak是Keycloak开源的一种开源身份和访问管理解决方案。 Keycloak存在数据伪造问题漏洞，该漏洞源于WebAuthn注册组件存在缺陷，可能导致绕过配置的证明策略并注册不受信任或伪造的认证器。

CVSS 3.1 · Low EPSS 0.21% · P9

Affected Version Matrix 9

VendorProduct Version RangeStatus
Keycloak keycloak < 26.4.4 affected
Red Hat Red Hat build of Keycloak 26.2 26.2.11-1< * unaffected
26.2-12< * unaffected
26.2-12< * unaffected
Red Hat Red Hat build of Keycloak 26.2.11 any unaffected
Red Hat Red Hat build of Keycloak 26.4 26.4.4-1< * unaffected
26.4-3< * unaffected
26.4-3< * unaffected
Red Hat Red Hat build of Keycloak 26.4.4 any unaffected
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I. Basic Information for CVE-2025-12150

Vulnerability Information
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Vulnerability Title
Org.keycloak/keycloak-services: webauthn attestation statement verification bypass
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
密码学签名的验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Keycloak 数据伪造问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Keycloak是Keycloak开源的一种开源身份和访问管理解决方案。 Keycloak存在数据伪造问题漏洞，该漏洞源于WebAuthn注册组件存在缺陷，可能导致绕过配置的证明策略并注册不受信任或伪造的认证器。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Keycloak keycloak 0 ~ 26.4.4 -
Red Hat Red Hat build of Keycloak 26.2 26.2.11-1 ~ * cpe:/a:redhat:build_keycloak:26.2::el9
Red Hat Red Hat build of Keycloak 26.2 26.2-12 ~ * cpe:/a:redhat:build_keycloak:26.2::el9
Red Hat Red Hat build of Keycloak 26.2 26.2-12 ~ * cpe:/a:redhat:build_keycloak:26.2::el9
Red Hat Red Hat build of Keycloak 26.2.11 - cpe:/a:redhat:build_keycloak:26.2::el9
Red Hat Red Hat build of Keycloak 26.4 26.4.4-1 ~ * cpe:/a:redhat:build_keycloak:26.4::el9
Red Hat Red Hat build of Keycloak 26.4 26.4-3 ~ * cpe:/a:redhat:build_keycloak:26.4::el9
Red Hat Red Hat build of Keycloak 26.4 26.4-3 ~ * cpe:/a:redhat:build_keycloak:26.4::el9
Red Hat Red Hat build of Keycloak 26.4.4 - cpe:/a:redhat:build_keycloak:26.4::el9

II. Public POCs for CVE-2025-12150

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III. Intelligence Information for CVE-2025-12150

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Vendor Advisories for CVE-2025-12150 (2)

IV. Related Vulnerabilities

Same product: keycloak
Same vendor: Keycloak
Same weakness: CWE-347

V. Comments for CVE-2025-12150

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