{"cve":"CVE-2023-40579","nvd":{"published":"2023-08-25T20:15:08.800","modified":"2026-06-17T06:18:33.207","status":"Modified","description":"OpenFGA is an authorization/permission engine built for developers and inspired by Google Zanzibar. Some end users of OpenFGA v1.3.0 or earlier are vulnerable to authorization bypass when calling the ListObjects API. The vulnerability affects customers using `ListObjects` with specific models. The affected models contain expressions of type `rel1 from type1`. This issue has been patched in version 1.3.1.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","score":6.5},"cwes":["CWE-284"],"references":["https://github.com/openfga/openfga/releases/tag/v1.3.1","https://github.com/openfga/openfga/security/advisories/GHSA-jcf2-mxr2-gmqp","https://github.com/openfga/openfga/releases/tag/v1.3.1","https://github.com/openfga/openfga/security/advisories/GHSA-jcf2-mxr2-gmqp"],"products":["openfga:openfga"],"source":"nvd","synced_at":"2026-10-19T21:39:14.809778102+00:00"},"epss":{"cve":"CVE-2023-40579","score":0.00545,"percentile":0.45736,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-jcf2-mxr2-gmqp","url":"https://osv.dev/vulnerability/GHSA-jcf2-mxr2-gmqp","summary":"OpenFGA Authorization Bypass","modified":"2024-08-21T14:41:43.299891Z","packages":[{"ecosystem":"Go","name":"github.com/openfga/openfga","purl":"pkg:golang/github.com/openfga/openfga","ranges":["<1.3.1"],"fixed":["1.3.1"]}]},{"id":"GO-2023-2028","url":"https://osv.dev/vulnerability/GO-2023-2028","summary":"OpenFGA Authorization Bypass in github.com/openfga/openfga","modified":"2026-03-03T04:54:07.931495Z","packages":[{"ecosystem":"Go","name":"github.com/openfga/openfga","purl":"pkg:golang/github.com/openfga/openfga","ranges":["<1.3.1"],"fixed":["1.3.1"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}