{
    "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-2026-33729",
        "tracking": {
            "current_release_date": "2026-03-30T19:11:48.426522Z",
            "generator": {
                "date": "2026-02-17T15:00:00Z",
                "engine": {
                    "name": "V.E.L.M.A",
                    "version": "1.7"
                }
            },
            "id": "CVE-2026-33729",
            "initial_release_date": "2026-03-26T17:40:58.308938Z",
            "revision_history": [
                {
                    "date": "2026-03-26T17:40:58.308938Z",
                    "number": "1",
                    "summary": "CVE created.| Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (4).| CWES updated (1)."
                },
                {
                    "date": "2026-03-26T17:41:11.018469Z",
                    "number": "2",
                    "summary": "NCSC Score created."
                },
                {
                    "date": "2026-03-26T18:12:36.759079Z",
                    "number": "3",
                    "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products created (1).| References created (3).| CWES updated (1)."
                },
                {
                    "date": "2026-03-26T18:12:45.657549Z",
                    "number": "4",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-03-27T00:13:44.821289Z",
                    "number": "5",
                    "summary": "Source created.| CVE status created. (valid)| Description created for source.| References created (3)."
                },
                {
                    "date": "2026-03-27T00:38:37.207859Z",
                    "number": "6",
                    "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products created (1).| References created (3).| CWES updated (1)."
                },
                {
                    "date": "2026-03-27T00:38:49.411783Z",
                    "number": "7",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-03-27T01:25:07.629372Z",
                    "number": "8",
                    "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (3).| CWES updated (1)."
                },
                {
                    "date": "2026-03-27T01:25:09.663453Z",
                    "number": "9",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-03-27T07:35:47.350816Z",
                    "number": "10",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-03-27T20:56:22.152792Z",
                    "number": "11",
                    "summary": "Source connected.| CVE status created. (valid)| EPSS created."
                },
                {
                    "date": "2026-03-28T07:57:19.246124Z",
                    "number": "12",
                    "summary": "References created (1)."
                },
                {
                    "date": "2026-03-30T12:41:45.762181Z",
                    "number": "13",
                    "summary": "Unknown change."
                }
            ],
            "status": "interim",
            "version": "13"
        }
    },
    "product_tree": {
        "branches": [
            {
                "branches": [
                    {
                        "branches": [
                            {
                                "category": "product_version_range",
                                "name": "vers:unknown/<1.13.1",
                                "product": {
                                    "name": "vers:unknown/<1.13.1",
                                    "product_id": "CSAFPID-5920658"
                                }
                            },
                            {
                                "category": "product_version_range",
                                "name": "vers:unknown/>=0|<1.13.1",
                                "product": {
                                    "name": "vers:unknown/>=0|<1.13.1",
                                    "product_id": "CSAFPID-5918522"
                                }
                            }
                        ],
                        "category": "product_name",
                        "name": "openfga"
                    }
                ],
                "category": "vendor",
                "name": "openfga"
            }
        ]
    },
    "vulnerabilities": [
        {
            "cve": "CVE-2026-33729",
            "cwe": {
                "id": "CWE-1289",
                "name": "Improper Validation of Unsafe Equivalence in Input"
            },
            "notes": [
                {
                    "category": "description",
                    "text": "### Description\nIn OpenFGA, under specific conditions, models using conditions with caching enabled can result in two different check requests producing the same cache key. This can result in OpenFGA reusing an earlier cached result for a different request.\n\n### Am I Affected?\nUsers are affected if the following preconditions are met:\n1. The model has relations which rely on condition evaluation.\n1. Caching is enabled.\n\n### Fix\nUpgrade to OpenFGA v1.13.1.\n\n### Acknowledgement\nOpenFGA would like to thank @Amemoyoi for the discovery and responsible disclosure.",
                    "title": "github - https://api.github.com/advisories/GHSA-h6c8-cww8-35hf"
                },
                {
                    "category": "description",
                    "text": "### Description\nIn OpenFGA, under specific conditions, models using conditions with caching enabled can result in two different check requests producing the same cache key. This can result in OpenFGA reusing an earlier cached result for a different request.\n\n### Am I Affected?\nUsers are affected if the following preconditions are met:\n1. The model has relations which rely on condition evaluation.\n1. Caching is enabled.\n\n### Fix\nUpgrade to OpenFGA v1.13.1.\n\n### Acknowledgement\nOpenFGA would like to thank @Amemoyoi for the discovery and responsible disclosure.",
                    "title": "osv - https://www.googleapis.com/download/storage/v1/b/osv-vulnerabilities/o/Go%2FGHSA-h6c8-cww8-35hf.json?alt=media"
                },
                {
                    "category": "description",
                    "text": "OpenFGA has an Authorization Bypass through cached keys in github.com/openfga/openfga",
                    "title": "osv - https://www.googleapis.com/download/storage/v1/b/osv-vulnerabilities/o/Go%2FGO-2026-4857.json?alt=media"
                },
                {
                    "category": "description",
                    "text": "OpenFGA is a high-performance and flexible authorization/permission engine built for developers and inspired by Google Zanzibar. In versions prior to 1.13.1, under specific conditions, models using conditions with caching enabled can result in two different check requests producing the same cache key. This can result in OpenFGA reusing an earlier cached result for a different request. Users are affected if the model has relations which rely on condition evaluation andncaching is enabled. OpenFGA v1.13.1 contains a patch.",
                    "title": "cveprojectv5 - https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/33xxx/CVE-2026-33729.json"
                },
                {
                    "category": "description",
                    "text": "OpenFGA is a high-performance and flexible authorization/permission engine built for developers and inspired by Google Zanzibar. In versions prior to 1.13.1, under specific conditions, models using conditions with caching enabled can result in two different check requests producing the same cache key. This can result in OpenFGA reusing an earlier cached result for a different request. Users are affected if the model has relations which rely on condition evaluation andncaching is enabled. OpenFGA v1.13.1 contains a patch.",
                    "title": "nvd - https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-33729"
                },
                {
                    "category": "other",
                    "text": "0.00012",
                    "title": "EPSS"
                },
                {
                    "category": "other",
                    "text": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H",
                    "title": "CVSSV4"
                },
                {
                    "category": "other",
                    "text": "5.8",
                    "title": "CVSSV4 base score"
                },
                {
                    "category": "other",
                    "text": "4.1",
                    "title": "NCSC Score"
                },
                {
                    "category": "other",
                    "text": "There is cwe data available from source Nvd, Is related to (a version of) an uncommon product",
                    "title": "NCSC Score top decreasing factors"
                }
            ],
            "product_status": {
                "known_affected": [
                    "CSAFPID-5918522",
                    "CSAFPID-5920658"
                ]
            },
            "references": [
                {
                    "category": "external",
                    "summary": "Source - github",
                    "url": "https://api.github.com/advisories/GHSA-h6c8-cww8-35hf"
                },
                {
                    "category": "external",
                    "summary": "Source - osv",
                    "url": "https://www.googleapis.com/download/storage/v1/b/osv-vulnerabilities/o/Go%2FGHSA-h6c8-cww8-35hf.json?alt=media"
                },
                {
                    "category": "external",
                    "summary": "Source - osv",
                    "url": "https://www.googleapis.com/download/storage/v1/b/osv-vulnerabilities/o/Go%2FGO-2026-4857.json?alt=media"
                },
                {
                    "category": "external",
                    "summary": "Source - cveprojectv5",
                    "url": "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/33xxx/CVE-2026-33729.json"
                },
                {
                    "category": "external",
                    "summary": "Source - nvd",
                    "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-33729"
                },
                {
                    "category": "external",
                    "summary": "Source - first",
                    "url": "https://api.first.org/data/v1/epss?limit=10000&offset=0"
                },
                {
                    "category": "external",
                    "summary": "Reference - cveprojectv5; github; nvd; osv",
                    "url": "https://github.com/openfga/openfga/security/advisories/GHSA-h6c8-cww8-35hf"
                },
                {
                    "category": "external",
                    "summary": "Reference - cveprojectv5; github; nvd; osv",
                    "url": "https://github.com/openfga/openfga/commit/049b50ccd2cc7e163bd897f3d17a7b859ad146f8"
                },
                {
                    "category": "external",
                    "summary": "Reference - cveprojectv5; github; nvd; osv",
                    "url": "https://github.com/openfga/openfga/releases/tag/v1.13.1"
                },
                {
                    "category": "external",
                    "summary": "Reference - github",
                    "url": "https://github.com/advisories/GHSA-h6c8-cww8-35hf"
                },
                {
                    "category": "external",
                    "summary": "Reference - github",
                    "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-33729"
                }
            ],
            "title": "CVE-2026-33729"
        }
    ]
}