{"cve":"CVE-2026-40293","nvd":{"published":"2026-04-17T21:16:34.567","modified":"2026-08-24T13:18:31.270","status":"Modified","description":"OpenFGA is an authorization/permission engine built for developers. In versions 0.1.4 through 1.13.1, when 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. Only those who run OpenFGA with `--authn-method` preshared, with the playground enabled, and with the playground endpoint accessible beyond localhost or trusted networks are vulnerable. To remediate the issue, users should upgrade to OpenFGA v1.14.0, or disable the playground by running `./openfga run --playground-enabled=false.`","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","score":6.5},"cwes":["CWE-200","CWE-201"],"references":["https://github.com/openfga/openfga/releases/tag/v1.14.0","https://github.com/openfga/openfga/security/advisories/GHSA-68m9-983m-f3v5","https://access.redhat.com/errata/RHSA-2026:24503","https://access.redhat.com/errata/RHSA-2026:24539","https://access.redhat.com/errata/RHSA-2026:36882"],"products":["openfga:openfga"],"source":"nvd","synced_at":"2026-10-19T22:30:49.762551342+00:00"},"epss":{"cve":"CVE-2026-40293","score":0.00287,"percentile":0.21233,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-68m9-983m-f3v5","url":"https://osv.dev/vulnerability/GHSA-68m9-983m-f3v5","summary":"OpenFGA: Unauthenticated playground endpoint discloses preshared API key in HTML response","modified":"2026-09-10T03:50:43.229036211Z","packages":[{"ecosystem":"Go","name":"github.com/openfga/openfga","purl":"pkg:golang/github.com/openfga/openfga","ranges":[">=0.1.4 <1.14.0"],"fixed":["1.14.0"]}]},{"id":"GO-2026-5170","url":"https://osv.dev/vulnerability/GO-2026-5170","summary":"OpenFGA: Unauthenticated playground endpoint discloses preshared API key in HTML response in github.com/openfga/openfga","modified":"2026-07-07T22:59:27.331233716Z","packages":[{"ecosystem":"Go","name":"github.com/openfga/openfga","purl":"pkg:golang/github.com/openfga/openfga","ranges":[">=0.1.4 <1.14.0"],"fixed":["1.14.0"]}]}],"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."]}