CVE-2025-12150 (GCVE-0-2025-12150)
Vulnerability from cvelistv5 – Published: 2026-02-27 08:10 – Updated: 2026-08-10 01:55
VLAI
EPSS
VEX
Title
Org.keycloak/keycloak-services: webauthn attestation statement verification bypass
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.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-27 16:45 UTC
CWE
- CWE-347 - Improper Verification of Cryptographic Signature
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://access.redhat.com/errata/RHSA-2025:21370 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2025:21371 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2025:22088 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2025:22089 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/security/cve/CVE-2025-12150 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2406192 | issue-trackingx_refsource_REDHAT |
| https://github.com/keycloak/keycloak/issues/43723 |
Impacted products
7 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Keycloak | keycloak |
Affected:
0 , < 26.4.4
(semver)
|
guessed | |
| Red Hat | Red Hat build of Keycloak 26.2 |
Unaffected:
26.2.11-1 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.2::el9 |
||
| Red Hat | Red Hat build of Keycloak 26.2 |
Unaffected:
26.2-12 , < *
(rpm)
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 |
Unaffected:
26.4.4-1 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.4::el9 |
||
| Red Hat | Red Hat build of Keycloak 26.4 |
Unaffected:
26.4-3 , < *
(rpm)
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
|
Date Public
2025-10-28 15:04
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\"https://catalog.redhat.com/software/containers/\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:build_keycloak:26.4::el9\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat build of Keycloak 26.4\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"26.4-3\", \"lessThan\": \"*\", \"versionType\": \"rpm\"}], \"packageName\": \"rhbk/keycloak-rhel9-operator\", \"collectionURL\": \"https://catalog.redhat.com/software/containers/\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:build_keycloak:26.4::el9\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat build of Keycloak 26.4.4\", \"collectionURL\": \"https://access.redhat.com/downloads/content/package-browser/\", \"defaultStatus\": \"unaffected\"}], \"timeline\": [{\"lang\": \"en\", \"time\": \"2025-10-24T11:25:25.758Z\", \"value\": \"Reported to Red Hat.\"}, {\"lang\": \"en\", \"time\": \"2025-10-28T15:04:00.000Z\", \"value\": \"Made public.\"}], \"datePublic\": \"2025-10-28T15:04:00.000Z\", \"references\": [{\"url\": \"https://access.redhat.com/errata/RHSA-2025:21370\", \"name\": \"RHSA-2025:21370\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2025:21371\", \"name\": \"RHSA-2025:21371\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2025:22088\", \"name\": \"RHSA-2025:22088\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2025:22089\", \"name\": \"RHSA-2025:22089\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/security/cve/CVE-2025-12150\", \"tags\": [\"vdb-entry\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://bugzilla.redhat.com/show_bug.cgi?id=2406192\", \"name\": \"RHBZ#2406192\", \"tags\": [\"issue-tracking\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://github.com/keycloak/keycloak/issues/43723\"}], \"workarounds\": [{\"lang\": \"en\", \"value\": \"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.\"}], \"x_generator\": {\"engine\": \"cvelib 1.8.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"A flaw was found in Keycloak\\u2019s 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.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-347\", \"description\": \"Improper Verification of Cryptographic Signature\"}]}], \"providerMetadata\": {\"orgId\": \"53f830b8-0a3f-465b-8143-3b8a9948e749\", \"shortName\": \"redhat\", \"dateUpdated\": \"2026-08-10T01:55:06.941Z\"}, \"x_redhatCweChain\": \"CWE-347: Improper Verification of Cryptographic Signature\"}}",
"cveMetadata": "{\"cveId\": \"CVE-2025-12150\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-08-10T01:55:06.941Z\", \"dateReserved\": \"2025-10-24T11:44:03.633Z\", \"assignerOrgId\": \"53f830b8-0a3f-465b-8143-3b8a9948e749\", \"datePublished\": \"2026-02-27T08:10:15.448Z\", \"assignerShortName\": \"redhat\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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