Vulnerability 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 Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Openfga | Openfga | >= 0.1.4, < 1.14.0 |
Related Weaknesses (CWE)
References
- https://github.com/openfga/openfga/releases/tag/v1.14.0ProductRelease Notes
- https://github.com/openfga/openfga/security/advisories/GHSA-68m9-983m-f3v5MitigationVendor Advisory
FAQ
What is CVE-2026-40293?
CVE-2026-40293 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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 enable...
How severe is CVE-2026-40293?
CVE-2026-40293 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-40293?
Check the references section above for vendor advisories and patch information. Affected products include: Openfga Openfga.