{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-54657",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-06-15T20:16:46.199Z",
        "datePublished": "2026-10-16T15:21:57.401Z",
        "dateUpdated": "2026-10-16T17:06:31.247Z"
    },
    "containers": {
        "cna": {
            "title": "Open Zaak: /zaken/_zoek and /enkelvoudiginformatieobjecten/_zoek endpoints do not filter result lists based on authorizations linked to token",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-285",
                            "lang": "en",
                            "description": "CWE-285: Improper Authorization",
                            "type": "CWE"
                        }
                    ]
                },
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-639",
                            "lang": "en",
                            "description": "CWE-639: Authorization Bypass Through User-Controlled Key",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "LOW",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "NONE",
                        "baseScore": 6.5,
                        "baseSeverity": "MEDIUM",
                        "confidentialityImpact": "HIGH",
                        "integrityImpact": "NONE",
                        "privilegesRequired": "LOW",
                        "scope": "UNCHANGED",
                        "userInteraction": "NONE",
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/open-zaak/open-zaak/security/advisories/GHSA-f29q-7rpr-jmjx",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/open-zaak/open-zaak/security/advisories/GHSA-f29q-7rpr-jmjx"
                },
                {
                    "name": "https://github.com/open-zaak/open-zaak/commit/15456f1a0ef4b0abf1b1c0e3a16c99c15423b9fd",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/open-zaak/open-zaak/commit/15456f1a0ef4b0abf1b1c0e3a16c99c15423b9fd"
                },
                {
                    "name": "https://github.com/open-zaak/open-zaak/commit/4b429d3243d1532f6fe731f932a201cf0ddc4c18",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/open-zaak/open-zaak/commit/4b429d3243d1532f6fe731f932a201cf0ddc4c18"
                },
                {
                    "name": "https://github.com/open-zaak/open-zaak/commit/d3869af98c60570782f867bab3e1d14fd8d8330f",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/open-zaak/open-zaak/commit/d3869af98c60570782f867bab3e1d14fd8d8330f"
                },
                {
                    "name": "https://github.com/open-zaak/open-zaak/releases/tag/1.27.2",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/open-zaak/open-zaak/releases/tag/1.27.2"
                },
                {
                    "name": "https://github.com/open-zaak/open-zaak/releases/tag/1.28.2",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/open-zaak/open-zaak/releases/tag/1.28.2"
                },
                {
                    "name": "https://github.com/open-zaak/open-zaak/releases/tag/1.29.0",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/open-zaak/open-zaak/releases/tag/1.29.0"
                }
            ],
            "affected": [
                {
                    "vendor": "open-zaak",
                    "product": "open-zaak",
                    "versions": [
                        {
                            "version": ">= 1.0.0, < 1.27.2",
                            "status": "affected"
                        },
                        {
                            "version": ">= 1.28.0, < 1.28.2",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-10-16T15:21:57.401Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Open Zaak is an open-source data and services layer for Dutch case-oriented working. From 1.0.0 until 1.27.2, 1.28.2, and 1.29.0, the POST search endpoints /zaken/api/v1/zaken/_zoek and /documenten/api/v1/enkelvoudiginformatieobjecten/_zoek do not filter result querysets according to the authorizations associated with the request token. A caller with a valid zaken.lezen or documenten.lezen token can therefore retrieve case or document metadata outside the token's authorized types or confidentiality levels. Document searches require known UUIDs, and document content remains protected by separate download authorization. This issue is fixed in versions 1.27.2, 1.28.2, and 1.29.0."
                }
            ],
            "source": {
                "advisory": "GHSA-f29q-7rpr-jmjx",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-10-16T16:32:04.577772Z",
                                "id": "CVE-2026-54657",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-10-16T17:06:31.247Z"
                }
            }
        ]
    }
}