{"cve":"CVE-2024-23820","nvd":{"published":"2024-01-26T17:15:13.287","modified":"2026-06-17T07:13:40.417","status":"Modified","description":"OpenFGA, an authorization/permission engine, is vulnerable to a denial of service attack in versions prior to 1.4.3. In some scenarios that depend on the model and tuples used, a call to `ListObjects` may not  release memory properly. So when a sufficiently high number of those calls are executed, the OpenFGA server can create an `out of memory` error and terminate. Version 1.4.3 contains a patch for this issue.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":6.5},"cwes":["CWE-401","CWE-770"],"references":["https://github.com/openfga/openfga/commit/908ac85c8b7769c8042cca31886df8db01976c39","https://github.com/openfga/openfga/releases/tag/v1.4.3","https://github.com/openfga/openfga/security/advisories/GHSA-rxpw-85vw-fx87","https://github.com/openfga/openfga/commit/908ac85c8b7769c8042cca31886df8db01976c39","https://github.com/openfga/openfga/releases/tag/v1.4.3"],"products":["openfga:openfga"],"source":"nvd","synced_at":"2026-10-19T21:44:57.175229480+00:00"},"epss":{"cve":"CVE-2024-23820","score":0.00734,"percentile":0.5443,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-rxpw-85vw-fx87","url":"https://osv.dev/vulnerability/GHSA-rxpw-85vw-fx87","summary":"OpenFGA denial of service","modified":"2026-09-10T03:50:05.091737442Z","packages":[{"ecosystem":"Go","name":"github.com/openfga/openfga","purl":"pkg:golang/github.com/openfga/openfga","ranges":["<1.4.3"],"fixed":["1.4.3"]}]},{"id":"GO-2024-2477","url":"https://osv.dev/vulnerability/GO-2024-2477","summary":"OpenFGA denial of service in github.com/openfga/openfga","modified":"2026-03-03T04:51:39.103274Z","packages":[{"ecosystem":"Go","name":"github.com/openfga/openfga","purl":"pkg:golang/github.com/openfga/openfga","ranges":["<1.4.3"],"fixed":["1.4.3"]}]}],"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."]}