{
    "document": {
        "category": "csaf_base",
        "csaf_version": "2.0",
        "distribution": {
            "tlp": {
                "label": "WHITE"
            }
        },
        "lang": "en",
        "notes": [
            {
                "category": "legal_disclaimer",
                "text": "The Netherlands Cyber Security Center (henceforth: NCSC-NL) maintains this portal to enhance access to its information and vulnerabilities. The use of this information is subject to the following terms and conditions:\n\nThe vulnerabilities disclosed in this portal are gathered by NCSC-NL from a variety of open sources, which the user can retrieve from other platforms. NCSC-NL makes every reasonable effort to ensure that the content of this portal is kept up to date, and that it is accurate and complete. Nevertheless, NCSC-NL cannot entirely rule out the possibility of errors, and therefore cannot give any warranty in respect of its completeness, accuracy or real-time keeping up-to-date. NCSC-NL does not control nor guarantee the accuracy, relevance, timeliness or completeness of information obtained from these external sources. The vulnerabilities disclosed in this portal are intended solely for the convenience of professional parties to take appropriate measures to manage the risks posed to the cybersecurity. No rights can be derived from the information provided therein.\n\nNCSC-NL and the Kingdom of the Netherlands assume no legal liability or responsibility for any damage resulting from either the use or inability of use of the vulnerabilities disclosed in this portal. This includes damage resulting from the inaccuracy of incompleteness of the information contained in it.\nThe information on this page is subject to Dutch law. All disputes related to or arising from the use of this portal regarding the disclosure of vulnerabilities will be submitted to the competent court in The Hague. This choice of means also applies to the court in summary proceedings."
            }
        ],
        "publisher": {
            "category": "coordinator",
            "contact_details": "cert@ncsc.nl",
            "name": "National Cyber Security Centre",
            "namespace": "https://www.ncsc.nl/"
        },
        "title": "CVE-2026-15945",
        "tracking": {
            "current_release_date": "2026-08-25T13:40:13.086018Z",
            "generator": {
                "date": "2026-02-17T15:00:00Z",
                "engine": {
                    "name": "V.E.L.M.A",
                    "version": "1.7"
                }
            },
            "id": "CVE-2026-15945",
            "initial_release_date": "2026-07-17T09:40:32.495743Z",
            "revision_history": [
                {
                    "date": "2026-07-17T09:40:32.495743Z",
                    "number": "1",
                    "summary": "CVE created.| Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (2).| CWES updated (1)."
                },
                {
                    "date": "2026-07-17T09:40:34.885176Z",
                    "number": "2",
                    "summary": "NCSC Score created."
                },
                {
                    "date": "2026-07-17T09:47:08.933412Z",
                    "number": "3",
                    "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (2).| CWES updated (1)."
                },
                {
                    "date": "2026-07-17T09:47:11.043355Z",
                    "number": "4",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-07-17T11:06:44.374369Z",
                    "number": "5",
                    "summary": "Source created.| CVE status created. (valid)| Products connected (1).| Product Identifiers created (1).| References created (5)."
                },
                {
                    "date": "2026-07-17T11:06:47.661855Z",
                    "number": "6",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-07-17T12:28:01.443363Z",
                    "number": "7",
                    "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products connected (9).| Product Identifiers created (4).| Products created (1).| References created (2).| CWES updated (1).| Vendor_assessment created."
                },
                {
                    "date": "2026-07-17T12:28:13.910490Z",
                    "number": "8",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-07-17T14:51:31.228027Z",
                    "number": "9",
                    "summary": "Unknown change."
                },
                {
                    "date": "2026-07-17T16:01:13.093834Z",
                    "number": "10",
                    "summary": "Source connected.| CVE status created. (valid)| EPSS created."
                },
                {
                    "date": "2026-07-17T16:01:14.657012Z",
                    "number": "11",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-07-22T19:02:08.949636Z",
                    "number": "12",
                    "summary": "Source connected.| CVE status created. (valid)| EPSS created."
                },
                {
                    "date": "2026-07-22T19:02:17.844940Z",
                    "number": "13",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-08-09T15:24:36.860695Z",
                    "number": "14",
                    "summary": "Products connected (4).| Product Identifiers created (4)."
                },
                {
                    "date": "2026-08-09T15:24:38.335723Z",
                    "number": "15",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-08-19T10:33:36.066537Z",
                    "number": "16",
                    "summary": "Products connected (1).| References created (1)."
                },
                {
                    "date": "2026-08-19T10:33:37.571497Z",
                    "number": "17",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-08-19T16:30:51.184932Z",
                    "number": "18",
                    "summary": "Source connected.| CVE status created. (valid)| EPSS created."
                },
                {
                    "date": "2026-08-25T13:39:58.435490Z",
                    "number": "19",
                    "summary": "Source connected.| CVE status created. (valid)"
                }
            ],
            "status": "interim",
            "version": "19"
        }
    },
    "product_tree": {
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                                    "product_identification_helper": {
                                        "cpe": "cpe:2.3:a:redhat:build_of_keycloak:-:*:*:*:-:*:*:*"
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                        "category": "product_name",
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                        "category": "product_name",
                        "name": "Enterprise Application Platform EAP Expansion Pack"
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                    {
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                                "category": "product_version_range",
                                "name": "vers:rpm/unknown",
                                "product": {
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                                    "product_id": "CSAFPID-1439290",
                                    "product_identification_helper": {
                                        "cpe": "cpe:/a:redhat:build_keycloak:"
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                        "category": "product_name",
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                                "name": "vers:rpm/8",
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                                        "cpe": "cpe:/a:redhat:jboss_data_grid:8"
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                                    "product_identification_helper": {
                                        "cpe": "cpe:/a:redhat:jbosseapxp"
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                    },
                    {
                        "branches": [
                            {
                                "category": "product_version_range",
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                                        "cpe": "cpe:/a:redhat:red_hat_single_sign_on:7"
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                    },
                    {
                        "branches": [
                            {
                                "category": "product_version_range",
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                                    "product_id": "CSAFPID-2491357",
                                    "product_identification_helper": {
                                        "cpe": "cpe:2.3:a:redhat:data_grid:8.0:*:*:*:*:*:*:*"
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                    {
                        "branches": [
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                                            "product_id": "CSAFPID-2152775"
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                                    }
                                ],
                                "category": "product_name",
                                "name": "keycloak-services"
                            },
                            {
                                "branches": [
                                    {
                                        "category": "product_version_range",
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                                ],
                                "category": "product_name",
                                "name": "rhbk-keycloak-rhel9"
                            },
                            {
                                "branches": [
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                                        "category": "product_version_range",
                                        "name": "vers:rpm/unknown",
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                                            "product_id": "CSAFPID-8334368"
                                        }
                                    }
                                ],
                                "category": "product_name",
                                "name": "rhbk-openshift-rhel9"
                            }
                        ],
                        "category": "product_family",
                        "name": "Red Hat Build of Keycloak"
                    },
                    {
                        "branches": [
                            {
                                "branches": [
                                    {
                                        "category": "product_version_range",
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                                            "product_id": "CSAFPID-8253508"
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                                    }
                                ],
                                "category": "product_name",
                                "name": "keycloak-services"
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                        ],
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                                "branches": [
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                                        "category": "product_version_range",
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                                            "name": "vers:rpm/unknown",
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                                "category": "product_name",
                                "name": "keycloak-services"
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                    {
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                                        "category": "product_version_range",
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                                            "product_id": "CSAFPID-2563053"
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                                    }
                                ],
                                "category": "product_name",
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                                "category": "product_version_range",
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                                    "product_id": "CSAFPID-2112025",
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                                        "cpe": "cpe:2.3:a:redhat:single_sign-on:7.0:*:*:*:*:*:*:*"
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                "category": "vendor",
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                        "branches": [
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                        ],
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                        "name": "Keycloak"
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                    {
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                                "category": "product_version_range",
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                                        "cpe": "cpe:/a:keycloak:keycloak:-"
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                        "name": "Open Source Keycloak"
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                ],
                "category": "vendor",
                "name": "Open Source"
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        ]
    },
    "vulnerabilities": [
        {
            "cve": "CVE-2026-15945",
            "cwe": {
                "id": "CWE-639",
                "name": "Authorization Bypass Through User-Controlled Key"
            },
            "notes": [
                {
                    "category": "description",
                    "text": "A flaw was found in the group search functionality of the Keycloak server's administrative API. When Fine-Grained Admin Permissions (FGAP) v2 is enabled, a delegated administrator can bypass access restrictions to view parent groups they are not authorized to see. By searching for a child group they have permission to view, the system incorrectly returns the full details of the parent group in the response, leading to the disclosure of sensitive group attributes and configuration.",
                    "title": "nvd - https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-15945"
                },
                {
                    "category": "description",
                    "text": "A flaw was found in the group search functionality of the Keycloak server's administrative API. When Fine-Grained Admin Permissions (FGAP) v2 is enabled, a delegated administrator can bypass access restrictions to view parent groups they are not authorized to see. By searching for a child group they have permission to view, the system incorrectly returns the full details of the parent group in the response, leading to the disclosure of sensitive group attributes and configuration.",
                    "title": "cveprojectv5 - https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/15xxx/CVE-2026-15945.json"
                },
                {
                    "category": "description",
                    "text": "A flaw was found in the group search functionality of the Keycloak server's administrative API. When Fine-Grained Admin Permissions (FGAP) v2 is enabled, a delegated administrator can bypass access restrictions to view parent groups they are not authorized to see. By searching for a child group they have permission to view, the system incorrectly returns the full details of the parent group in the response, leading to the disclosure of sensitive group attributes and configuration.\nThe Red Hat Product Security team has assessed the severity of this vulnerability as Moderate, given that it requires an authenticated attacker with specific delegated administrative permissions and the non-default FGAP v2 feature to be enabled. Successful exploitation allows an attacker to disclose sensitive metadata and configuration details of parent groups they are otherwise restricted from viewing. The vulnerability's root cause is a failure to apply fine-grained access control filters to parent groups during hierarchical search result construction.",
                    "title": "redhat - https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-15945.json"
                },
                {
                    "category": "other",
                    "text": "0.00178",
                    "title": "EPSS"
                },
                {
                    "category": "other",
                    "text": "4.7",
                    "title": "NCSC Score"
                },
                {
                    "category": "other",
                    "text": "There is product data available from source Certbundde, Is related to (a version of) an uncommon product",
                    "title": "NCSC Score top increasing factors"
                },
                {
                    "category": "other",
                    "text": "The value of the most recent EPSS score",
                    "title": "NCSC Score top decreasing factors"
                },
                {
                    "category": "details",
                    "text": "Severity: 2\n",
                    "title": "Vendor assessment"
                }
            ],
            "product_status": {
                "known_affected": [
                    "CSAFPID-2170821",
                    "CSAFPID-1439290",
                    "CSAFPID-1439292",
                    "CSAFPID-1439304",
                    "CSAFPID-1439308",
                    "CSAFPID-2152775",
                    "CSAFPID-2563053",
                    "CSAFPID-2986457",
                    "CSAFPID-8253508",
                    "CSAFPID-8334368",
                    "CSAFPID-8845522",
                    "CSAFPID-1344702",
                    "CSAFPID-1421880",
                    "CSAFPID-2112025",
                    "CSAFPID-2491357",
                    "CSAFPID-9012188"
                ]
            },
            "references": [
                {
                    "category": "external",
                    "summary": "Source - ncscclear",
                    "url": "https://advisories.ncsc.nl/advisory?id=NCSC-2026-0326"
                },
                {
                    "category": "external",
                    "summary": "Source - certbundde",
                    "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-2389.json"
                },
                {
                    "category": "external",
                    "summary": "Source - redhat",
                    "url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-15945.json"
                },
                {
                    "category": "external",
                    "summary": "Source - nvd",
                    "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-15945"
                },
                {
                    "category": "external",
                    "summary": "Source - cveprojectv5",
                    "url": "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/15xxx/CVE-2026-15945.json"
                },
                {
                    "category": "external",
                    "summary": "Source - first",
                    "url": "https://api.first.org/data/v1/epss?limit=10000&offset=20000"
                },
                {
                    "category": "external",
                    "summary": "Source - first",
                    "url": "https://api.first.org/data/v1/epss?limit=10000&offset=30000"
                },
                {
                    "category": "external",
                    "summary": "Source - first",
                    "url": "https://api.first.org/data/v1/epss?limit=10000&offset=40000"
                },
                {
                    "category": "external",
                    "summary": "Source - ncscclear",
                    "url": "https://vulnerabilities.ncsc.nl/manual/CVE-2026-15945"
                },
                {
                    "category": "external",
                    "summary": "Reference - cveprojectv5; nvd",
                    "url": "https://access.redhat.com/security/cve/CVE-2026-15945"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde; cveprojectv5; nvd",
                    "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2501302"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-2389.json"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-2389"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://github.com/advisories/GHSA-HP9P-WJ8M-C339"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://access.redhat.com/security/cve/cve-2026-15945"
                },
                {
                    "category": "external",
                    "summary": "Reference - redhat",
                    "url": "https://www.cve.org/CVERecord?id=CVE-2026-15945"
                },
                {
                    "category": "external",
                    "summary": "Reference - redhat",
                    "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-15945"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://www.keycloak.org/2026/08/keycloak-2672-released"
                }
            ],
            "scores": [
                {
                    "cvss_v3": {
                        "version": "3.1",
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
                        "baseScore": 4.3,
                        "baseSeverity": "MEDIUM"
                    },
                    "products": [
                        "CSAFPID-1344702",
                        "CSAFPID-1421880",
                        "CSAFPID-1439290",
                        "CSAFPID-1439292",
                        "CSAFPID-1439304",
                        "CSAFPID-1439308",
                        "CSAFPID-2112025",
                        "CSAFPID-2152775",
                        "CSAFPID-2170821",
                        "CSAFPID-2491357",
                        "CSAFPID-2563053",
                        "CSAFPID-2986457",
                        "CSAFPID-8253508",
                        "CSAFPID-8334368",
                        "CSAFPID-8845522",
                        "CSAFPID-9012188"
                    ]
                }
            ],
            "title": "CVE-2026-15945"
        }
    ]
}