FKIE_CVE-2025-14778

Vulnerability from fkie_nvd - Published: 2026-02-09 20:15 - Updated: 2026-02-10 02:15
Severity ?
5.4 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Summary
A flaw was found in Keycloak. A significant Broken Access Control vulnerability exists in the UserManagedPermissionService (UMA Protection API). When updating or deleting a UMA policy associated with multiple resources, the authorization check only verifies the caller's ownership against the first resource in the policy's list. This allows a user (Owner A) who owns one resource (RA) to update a shared policy and modify authorization rules for other resources (e.g., RB) in that same policy, even if those other resources are owned by a different user (Owner B). This constitutes a horizontal privilege escalation.
References
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:2363
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:2364
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:2365
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:2366
secalert@redhat.comhttps://access.redhat.com/security/cve/CVE-2025-14778
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=2422600
Impacted products
Vendor Product Version
To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A flaw was found in Keycloak. A significant Broken Access Control vulnerability exists in the UserManagedPermissionService (UMA Protection API). When updating or deleting a UMA policy associated with multiple resources, the authorization check only verifies the caller\u0027s ownership against the first resource in the policy\u0027s list. This allows a user (Owner A) who owns one resource (RA) to update a shared policy and modify authorization rules for other resources (e.g., RB) in that same policy, even if those other resources are owned by a different user (Owner B). This constitutes a horizontal privilege escalation."
    },
    {
      "lang": "es",
      "value": "Se encontr\u00f3 una falla en Keycloak. Existe una significativa vulnerabilidad de control de acceso roto en el UserManagedPermissionService (API de Protecci\u00f3n UMA). Al actualizar o eliminar una pol\u00edtica UMA asociada con m\u00faltiples recursos, la verificaci\u00f3n de autorizaci\u00f3n solo verifica la propiedad del llamador contra el primer recurso en la lista de la pol\u00edtica. Esto permite a un usuario (Propietario A) que posee un recurso (RA) actualizar una pol\u00edtica compartida y modificar reglas de autorizaci\u00f3n para otros recursos (p. ej., RB) en esa misma pol\u00edtica, incluso si esos otros recursos son propiedad de un usuario diferente (Propietario B). Esto constituye una escalada de privilegios horizontal."
    }
  ],
  "id": "CVE-2025-14778",
  "lastModified": "2026-02-10T02:15:52.017",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.4,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 2.5,
        "source": "secalert@redhat.com",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-02-09T20:15:54.470",
  "references": [
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/errata/RHSA-2026:2363"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/errata/RHSA-2026:2364"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/errata/RHSA-2026:2365"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/errata/RHSA-2026:2366"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/security/cve/CVE-2025-14778"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2422600"
    }
  ],
  "sourceIdentifier": "secalert@redhat.com",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-266"
        }
      ],
      "source": "secalert@redhat.com",
      "type": "Secondary"
    }
  ]
}


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