Org.keycloak/keycloak-quarkus-server: unable to restrict access to the admin console

{
  "id": "388a95af524aa689959e82e773b18322a55c7762f64c36b5c5f04054623dea78",
  "url": "https://osv.dev/vulnerability/CVE-2025-10939",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Org.keycloak/keycloak-quarkus-server: unable to restrict access to the admin console",
    "summary": "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.",
    "evidence": "osv:CVE-2025-10939",
    "products": [],
    "severity": "low",
    "structured": {
      "id": "CVE-2025-10939",
      "aliases": [
        "CVE-2025-10939",
        "GHSA-vjr8-56p3-fmqq"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/keycloak/keycloak",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "463a1eeb5ce70fd45112150c6b14e81c9d54e405"
                },
                {
                  "fixed": "96cdef8e08c072afb1cf1be7ac1e2a68cfeadf67"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "26.4.4"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "26.4-3"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "InverseAffectedRanges"
                  }
                ]
              }
            }
          ],
          "versions": [
            "2.4.0.Test",
            "1.3.0.Final",
            "1.1.0.Beta2",
            "1.0.0.Final",
            "1.0-final",
            "1.0-rc-1",
            "1.0-beta-4",
            "1.0-beta-2",
            "1.0-beta-1",
            "1.0-alpha-3",
            "1.0-alpha-2",
            "1.0-alpha-1",
            "1.0-alpha-1-12062013"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-10939.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:51.961309626Z",
      "provider": "osv",
      "references": [
        "https://access.redhat.com/downloads/content/package-browser/",
        "https://catalog.redhat.com/software/containers/",
        "https://access.redhat.com/errata/RHSA-2025:21370",
        "https://access.redhat.com/errata/RHSA-2025:21371",
        "https://access.redhat.com/security/cve/CVE-2025-10939",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/10xxx/CVE-2025-10939.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-10939",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2398025",
        "https://github.com/keycloak/keycloak/issues/43763",
        "https://github.com/keycloak/keycloak/pull/43765",
        "https://github.com/keycloak/keycloak"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-427"
        ],
        "cna_assigner": "redhat",
        "unresolved_ranges": [
          {
            "extracted_events": [
              {
                "range": [
                  {
                    "fixed": "26.4.4-1"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "InverseAffectedRanges"
              }
            ]
          }
        ],
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/10xxx/CVE-2025-10939.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-10939",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 520917,
  "published_at": "2025-10-28T03:08:30.103+00:00"
}