{"id":"GHSA-cf98-j28v-49v6","summary":"OpenFGA Improper Policy Enforcement","details":"## Description\n\nIn OpenFGA, when MySQL is being used as the datastore, two distinct check requests can return the same response.\n\n## Preconditions\n\nThis applies if the following preconditions are met:\n\n1. You run OpenFGA with MySQL as the datastore\n2. Your authorization decisions rely on case-sensitive user strings.\n\n## Fix\nUpgrade to OpenFGA 1.18.0 or greater.\n\n## Acknowledgements\nOpenFGA would like to thank @sahajamoth for the detailed report.","aliases":["CVE-2026-55170","GO-2026-5322"],"modified":"2026-09-10T03:51:08.477646859Z","published":"2026-06-18T15:05:30Z","database_specific":{"cwe_ids":["CWE-178"],"severity":"LOW","github_reviewed":true,"github_reviewed_at":"2026-06-18T15:05:30Z","nvd_published_at":"2026-07-09T22:17:05Z"},"references":[{"type":"WEB","url":"https://github.com/openfga/openfga/security/advisories/GHSA-cf98-j28v-49v6"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-55170"},{"type":"WEB","url":"https://github.com/openfga/helm-charts/commit/96d5517a2693ff5def451dee7d6b9d1baeb281f8"},{"type":"WEB","url":"https://github.com/openfga/openfga/commit/a2e0dbefc3e01a95c785f81a3563bc6571b08b11"},{"type":"WEB","url":"https://github.com/openfga/helm-charts/releases/tag/openfga-0.3.9"},{"type":"PACKAGE","url":"https://github.com/openfga/openfga"},{"type":"WEB","url":"https://github.com/openfga/openfga/releases/tag/v1.18.0"}],"affected":[{"package":{"name":"github.com/openfga/openfga","ecosystem":"Go","purl":"pkg:golang/github.com/openfga/openfga"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.18.0"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-cf98-j28v-49v6/GHSA-cf98-j28v-49v6.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N"}]}