{"id":"CVE-2024-23820","aliases":["GHSA-rxpw-85vw-fx87","GO-2024-2477"],"url":"https://o3.security/vulnerability/CVE-2024-23820","summary":"OpenFGA DoS","details":"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.","published":"2024-01-26T16:37:27.065Z","modified":"2026-07-15T01:49:02.643098105Z","cvss":{"score":5.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H"},"epss":{"score":0.00734,"percentile":0.50844,"asOf":"2026-07-31"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"github.com/openfga/openfga","fixedVersion":"1.4.3"}],"fix":{"url":"https://github.com/openfga/openfga/commit/908ac85c8b7769c8042cca31886df8db01976c39","label":"openfga/openfga@908ac85"},"references":[{"type":"WEB","url":"https://github.com/openfga/openfga/releases/tag/v1.4.3"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/23xxx/CVE-2024-23820.json"},{"type":"ADVISORY","url":"https://github.com/openfga/openfga/security/advisories/GHSA-rxpw-85vw-fx87"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-23820"},{"type":"FIX","url":"https://github.com/openfga/openfga/commit/908ac85c8b7769c8042cca31886df8db01976c39"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-15T01:49:02.643098105Z"}}