{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-06-24T19:45:33.573","vulnerabilities":[{"cve":{"id":"CVE-2023-43645","sourceIdentifier":"security-advisories@github.com","published":"2023-09-27T15:19:34.330","lastModified":"2026-06-17T06:26:08.630","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"OpenFGA is an authorization/permission engine built for developers and inspired by Google Zanzibar. OpenFGA is vulnerable to a denial of service attack when certain Check calls are executed against authorization models that contain circular relationship definitions. When the call is made, it's possible for the server to exhaust resources and die. Users are advised to upgrade to v1.3.2 and update any offending models. There are no known workarounds for this vulnerability. Note that for models which contained cycles or a relation definition that has the relation itself in its evaluation path, checks and queries that require evaluation will no longer be evaluated on v1.3.2+ and will return errors instead. Users who do not have cyclic models are unaffected."},{"lang":"es","value":"OpenFGA es un motor de autorización/permisos creado para desarrolladores e inspirado en Google Zanzibar. OpenFGA es vulnerable a un ataque de denegación de servicio cuando ciertas llamadas de verificación se ejecutan contra modelos de autorización que contienen definiciones de relaciones circulares. Cuando se realiza la llamada, es posible que el servidor agote los recursos y muera. Se recomienda a los usuarios que actualicen a la versión 1.3.2 y actualicen cualquier modelo infractor. No se conocen workarounds para esta vulnerabilidad. Tenga en cuenta que para los modelos que contienen ciclos o una definición de relación que tiene la relación misma en su ruta de evaluación, las comprobaciones y consultas que requieren evaluación ya no se evaluarán en la versión 1.3.2+ y, en su lugar, devolverán errores. Los usuarios que no tienen modelos cíclicos no se ven afectados."}],"affected":[{"source":"security-advisories@github.com","affectedData":[{"vendor":"openfga","product":"openfga","versions":[{"version":"< 1.3.2","status":"affected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","baseScore":5.9,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":2.2,"impactScore":3.6},{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","baseScore":5.9,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":2.2,"impactScore":3.6}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2024-09-23T20:20:03.702938Z","id":"CVE-2023-43645","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Secondary","description":[{"lang":"en","value":"CWE-835"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:openfga:openfga:*:*:*:*:*:*:*:*","versionEndExcluding":"1.3.2","matchCriteriaId":"96CAB7D1-0960-4345-AE65-6BCC577FAA24"}]}]}],"references":[{"url":"https://github.com/openfga/openfga/commit/725296025fd81227c89525808652c6acd4a605f6","source":"security-advisories@github.com","tags":["Patch"]},{"url":"https://github.com/openfga/openfga/security/advisories/GHSA-2hm9-h873-pgqh","source":"security-advisories@github.com","tags":["Vendor Advisory"]},{"url":"https://github.com/openfga/openfga/commit/725296025fd81227c89525808652c6acd4a605f6","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]},{"url":"https://github.com/openfga/openfga/security/advisories/GHSA-2hm9-h873-pgqh","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Vendor Advisory"]}]}}]}