{"id":"CVE-2026-40293","aliases":["GHSA-68m9-983m-f3v5","GO-2026-5170"],"url":"https://o3.security/vulnerability/CVE-2026-40293","summary":"OpenFGA Playground Preshared Key Exposure","details":"### Description\nWhen OpenFGA is configured to use preshared-key authentication with the built-in playground enabled, the local server includes the preshared API key in the HTML response of the /playground endpoint. The /playground endpoint is enabled by default and does not require authentication. It is intended for local development and debugging and is not designed to be exposed to production environments.\n\n\n### Am I Affected?\nYou are affected if you meet each of the following preconditions:\n* You are running OpenFGA with --authn-method preshared, and\n* The playground is enabled, and\n* The playground endpoint is accessible beyond localhost or trusted networks.\n\n### Fix\nUpgrade to OpenFGA v1.14.0, or disable the playground by running `./openfga run --playground-enabled=false.`","published":"2026-04-17T20:47:06.804Z","modified":"2026-10-28T02:30:22.151831944Z","cvss":{"score":6.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"github.com/openfga/openfga","fixedVersion":"1.14.0"}],"fix":null,"references":[{"type":"WEB","url":"https://github.com/openfga/openfga/releases/tag/v1.14.0"},{"type":"WEB","url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-40293.json"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:24503"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:24539"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:36882"},{"type":"ADVISORY","url":"https://access.redhat.com/security/cve/CVE-2026-40293"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/40xxx/CVE-2026-40293.json"},{"type":"ADVISORY","url":"https://github.com/openfga/openfga/security/advisories/GHSA-68m9-983m-f3v5"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-40293"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2459341"},{"type":"PACKAGE","url":"https://github.com/openfga/openfga"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-28T02:30:22.151831944Z"}}