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Advisory details: vulnrichment / CVE-2025-12150
Advisory ID vulnrichment/CVE-2025-12150
Aliases
Summary 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.
Status Published
Exploitability 0.5
Weighted Severity 0.0
Risk
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (1)
CWE-347 Improper Verification of Cryptographic Signature
System Score Found at
cvssv3.1 3.1
ssvc Track
Reference id Reference type URL
https://bugzilla.redhat.com/show_bug.cgi?id=2406192
https://github.com/keycloak/keycloak/issues/43723
cpe:/a:redhat:build_keycloak:26.2::el9 Other https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:/a:redhat:build_keycloak:26.2::el9
cpe:/a:redhat:build_keycloak:26.4::el9 Other https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:/a:redhat:build_keycloak:26.4::el9
CVE-2025-12150 https://access.redhat.com/security/cve/CVE-2025-12150
RHSA-2025:21370 Advisory https://access.redhat.com/errata/RHSA-2025:21370
RHSA-2025:21371 Advisory https://access.redhat.com/errata/RHSA-2025:21371
RHSA-2025:22088 Advisory https://access.redhat.com/errata/RHSA-2025:22088
RHSA-2025:22089 Advisory https://access.redhat.com/errata/RHSA-2025:22089
No exploits are available.

No EPSS data available for this advisory.

Patch URL
There are no known patches.
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N Found at None
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-02-27T16:45:45Z/ Found at None

Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-02-27T16:45:45Z/

Decision: Track

Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2025/12xxx/CVE-2025-12150.json

Source Advisory: vulnrichment/CVE-2025-12150

View SSVC decision tree 
[{'Exploitation': 'none'},
 {'Automatable': 'no'},
 {'Technical Impact': 'partial'},
 {'Mission Prevalence': 'minimal'},
 {'Public Well-being Impact': 'material'},
 {'Mission & Well-being': 'medium'}]