CVE-2025-10939

{
  "id": "CVE-2025-10939",
  "sourceIdentifier": "[email protected]",
  "published": "2025-10-28T04:16:15.217",
  "lastModified": "2026-10-18T21:10:00.120",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A flaw was found in Keycloak. The Keycloak guides recommend to not expose /admin path to the outside in case the installation is using a proxy. The issue occurs at least via ha-proxy, as it can be tricked to using relative/non-normalized paths to access the /admin application path relative to /realms which is expected to be exposed."
    },
    {
      "lang": "es",
      "value": "Se encontró una falla en Keycloak. Las guías de Keycloak recomiendan no exponer la ruta /admin al exterior si la instalación está utilizando un proxy. El problema ocurre al menos a través de ha-proxy, ya que se le puede engañar para que use rutas relativas/no normalizadas para acceder a la ruta de aplicación /admin relativa a /realms, que se espera que esté expuesta."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "Keycloak",
          "product": "keycloak",
          "defaultStatus": "unaffected",
          "collectionURL": "https://github.com/keycloak/keycloak",
          "packageName": "keycloak",
          "versions": [
            {
              "version": "0",
              "lessThan": "26.4.4",
              "versionType": "semver",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Red Hat",
          "product": "Red Hat build of Keycloak 26.4",
          "defaultStatus": "affected",
          "collectionURL": "https://catalog.redhat.com/software/containers/",
          "packageName": "rhbk/keycloak-operator-bundle",
          "cpes": [
            "cpe:/a:redhat:build_keycloak:26.4::el9"
          ],
          "versions": [
            {
              "version": "26.4.4-1",
              "lessThan": "*",
              "versionType": "rpm",
              "status": "unaffected"
            }
          ]
        },
        {
          "vendor": "Red Hat",
          "product": "Red Hat build of Keycloak 26.4",
          "defaultStatus": "affected",
          "collectionURL": "https://catalog.redhat.com/software/containers/",
          "packageName": "rhbk/keycloak-rhel9",
          "cpes": [
            "cpe:/a:redhat:build_keycloak:26.4::el9"
          ],
          "versions": [
            {
              "version": "26.4-3",
              "lessThan": "*",
              "versionType": "rpm",
              "status": "unaffected"
            }
          ]
        },
        {
          "vendor": "Red Hat",
          "product": "Red Hat build of Keycloak 26.4",
          "defaultStatus": "affected",
          "collectionURL": "https://catalog.redhat.com/software/containers/",
          "packageName": "rhbk/keycloak-rhel9-operator",
          "cpes": [
            "cpe:/a:redhat:build_keycloak:26.4::el9"
          ],
          "versions": [
            {
              "version": "26.4-3",
              "lessThan": "*",
              "versionType": "rpm",
              "status": "unaffected"
            }
          ]
        },
        {
          "vendor": "Red Hat",
          "product": "Red Hat build of Keycloak 26.4.4",
          "defaultStatus": "unaffected",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:build_keycloak:26.4::el9"
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N",
          "baseScore": 3.7,
          "baseSeverity": "LOW",
          "attackVector": "NETWORK",
          "attackComplexity": "HIGH",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 1.4
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2025-10-28T20:01:48.155815Z",
          "id": "CVE-2025-10939",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-427"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://access.redhat.com/errata/RHSA-2025:21370",
      "source": "[email protected]"
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2025:21371",
      "source": "[email protected]"
    },
    {
      "url": "https://access.redhat.com/security/cve/CVE-2025-10939",
      "source": "[email protected]"
    },
    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2398025",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/keycloak/keycloak/issues/43763",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/keycloak/keycloak/pull/43765",
      "source": "[email protected]"
    }
  ]
}