Vulnerability-Lookup

GHSA-7G5X-9C4V-4W5R

Vulnerability from github – Published: 2026-02-27 09:30 – Updated: 2026-02-27 09:30

Details

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 ?

3.1 (Low)


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

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JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2025-12150"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-347"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-02-27T09:16:15Z",
    "severity": "LOW"
  },
  "details": "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.",
  "id": "GHSA-7g5x-9c4v-4w5r",
  "modified": "2026-02-27T09:30:29Z",
  "published": "2026-02-27T09:30:29Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-12150"
    },
    {
      "type": "WEB",
      "url": "https://github.com/keycloak/keycloak/issues/43723"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:21370"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:21371"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:22088"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:22089"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2025-12150"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2406192"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2025-12150 (GCVE-0-2025-12150)

Vulnerability from cvelistv5 – Published: 2026-02-27 08:10 – Updated: 2026-02-27 08:10

Title

Org.keycloak/keycloak-services: webauthn attestation statement verification bypass

Summary

Severity ?

3.1 (Low)


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

CWE

CWE-347 - Improper Verification of Cryptographic Signature

Assigner

redhat

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

Vendor

Product

Version

Keycloak

keycloak

Affected: 0 , < 26.4.4 (semver)

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	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	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

Credits

Red Hat would like to thank Stefan Kunz (cnlab) for reporting this issue.

Show details on NVD website

JSON

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{
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              "version": "0",
              "versionType": "semver"
            }
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          "product": "Red Hat build of Keycloak 26.4",
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          ],
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          "packageName": "org.keycloak/keycloak-services",
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      ],
      "metrics": [
        {
          "other": {
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              "value": "Low"
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            "type": "Red Hat severity rating"
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            "attackVector": "NETWORK",
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            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
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            "userInteraction": "REQUIRED",
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Sightings

Author	Source	Type	Date

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.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-7G5X-9C4V-4W5R

CVE-2025-12150 (GCVE-0-2025-12150)

Tags

Sightings

Nomenclature