rhsa-2025:22091
Vulnerability from csaf_redhat
Published
2025-11-25 16:07
Modified
2025-11-27 06:34
Summary
Red Hat Security Advisory: Red Hat build of Keycloak 26.4.6 Security Update

Notes

Topic
New Red Hat build of Keycloak 26.4.6 packages are available from the Customer Portal
Details
Red Hat build of Keycloak 26.4.6 is a standalone server, based on the Keycloak project, that provides authentication and standards-based single sign-on capabilities for web and mobile applications. Security fixes: * Deserialization of Untrusted Data in LDAP User Federation (CVE-2025-13467)
Terms of Use
This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.


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{
  "document": {
    "aggregate_severity": {
      "namespace": "https://access.redhat.com/security/updates/classification/",
      "text": "Moderate"
    },
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Copyright \u00a9 Red Hat, Inc. All rights reserved.",
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en",
    "notes": [
      {
        "category": "summary",
        "text": "New Red Hat build of Keycloak 26.4.6 packages are available from the Customer Portal",
        "title": "Topic"
      },
      {
        "category": "general",
        "text": "Red Hat build of Keycloak 26.4.6 is a standalone server, based on the Keycloak project, that provides authentication and standards-based single sign-on capabilities for web and mobile applications.\n\nSecurity fixes:\n* Deserialization of Untrusted Data in LDAP User Federation (CVE-2025-13467)",
        "title": "Details"
      },
      {
        "category": "legal_disclaimer",
        "text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.",
        "title": "Terms of Use"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "https://access.redhat.com/security/team/contact/",
      "issuing_authority": "Red Hat Product Security is responsible for vulnerability handling across all Red Hat products and services.",
      "name": "Red Hat Product Security",
      "namespace": "https://www.redhat.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "https://access.redhat.com/errata/RHSA-2025:22091",
        "url": "https://access.redhat.com/errata/RHSA-2025:22091"
      },
      {
        "category": "external",
        "summary": "https://access.redhat.com/security/updates/classification/#moderate",
        "url": "https://access.redhat.com/security/updates/classification/#moderate"
      },
      {
        "category": "self",
        "summary": "Canonical URL",
        "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2025/rhsa-2025_22091.json"
      }
    ],
    "title": "Red Hat Security Advisory: Red Hat build of Keycloak 26.4.6 Security Update",
    "tracking": {
      "current_release_date": "2025-11-27T06:34:41+00:00",
      "generator": {
        "date": "2025-11-27T06:34:41+00:00",
        "engine": {
          "name": "Red Hat SDEngine",
          "version": "4.6.13"
        }
      },
      "id": "RHSA-2025:22091",
      "initial_release_date": "2025-11-25T16:07:25+00:00",
      "revision_history": [
        {
          "date": "2025-11-25T16:07:25+00:00",
          "number": "1",
          "summary": "Initial version"
        },
        {
          "date": "2025-11-25T16:07:25+00:00",
          "number": "2",
          "summary": "Last updated version"
        },
        {
          "date": "2025-11-27T06:34:41+00:00",
          "number": "3",
          "summary": "Last generated version"
        }
      ],
      "status": "final",
      "version": "3"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_name",
                "name": "Red Hat build of Keycloak 26.4.6",
                "product": {
                  "name": "Red Hat build of Keycloak 26.4.6",
                  "product_id": "Red Hat build of Keycloak 26.4.6",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:redhat:build_keycloak:26.4::el9"
                  }
                }
              }
            ],
            "category": "product_family",
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          }
        ],
        "category": "vendor",
        "name": "Red Hat"
      }
    ]
  },
  "vulnerabilities": [
    {
      "acknowledgments": [
        {
          "names": [
            "Icare \u0026 truff"
          ],
          "organization": "YWH"
        }
      ],
      "cve": "CVE-2025-13467",
      "cwe": {
        "id": "CWE-502",
        "name": "Deserialization of Untrusted Data"
      },
      "discovery_date": "2025-11-20T03:12:47.343000+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2416038"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in the Keycloak LDAP User Federation provider. This vulnerability allows an authenticated realm administrator to trigger deserialization of untrusted Java objects via a malicious LDAP server configuration.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "org.keycloak.storage.ldap: Keycloak: Deserialization of Untrusted Data in LDAP User Federation",
          "title": "Vulnerability summary"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "Red Hat build of Keycloak 26.4.6"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2025-13467"
        },
        {
          "category": "external",
          "summary": "RHBZ#2416038",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2416038"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2025-13467",
          "url": "https://www.cve.org/CVERecord?id=CVE-2025-13467"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2025-13467",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-13467"
        }
      ],
      "release_date": "2025-11-25T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2025-11-25T16:07:25+00:00",
          "details": "Before applying the update, back up your existing installation, including all applications, configuration files, databases and database settings, and so on.",
          "product_ids": [
            "Red Hat build of Keycloak 26.4.6"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2025:22091"
        },
        {
          "category": "workaround",
          "details": "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.",
          "product_ids": [
            "Red Hat build of Keycloak 26.4.6"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "HIGH",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N",
            "version": "3.1"
          },
          "products": [
            "Red Hat build of Keycloak 26.4.6"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "org.keycloak.storage.ldap: Keycloak: Deserialization of Untrusted Data in LDAP User Federation"
    }
  ]
}


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