Openfga Openfga
CVE-2026-40293
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.`
What this means for your business
- It affects Openfga. It matters if your company, or a supplier that handles your data, runs it.
- An attacker can use it remotely, over a network, without a login, and without anyone at your company clicking anything.
- FIRST's prediction model gives it a 0.3% chance of attack attempts being seen in the next 30 days, ranking above 21% of all known flaws.
What to do
- 1Check whether your company or your suppliers run Openfga, and which version. The affected versions are listed further down this page.
- 2If you do, apply the vendor's fix. A patch or vendor advisory has been published.
Not sure if your company is exposed?
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Scoring
- CVSS
- 6.5 (v3.1)
- Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N- Weakness
- CWE-200
- Assigned by
- security-advisories@github.com
Dates
- Published
- 2026-04-17
- Last modified
- 2026-08-24
- Sources
- NVD
Affected products
- Openfga Openfga0.1.4 - 1.14.0
As listed in the NVD configuration data. Not a statement about your estate.
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
- https://access.redhat.com/security/cve/CVE-2026-40293
- https://bugzilla.redhat.com/show_bug.cgi?id=2459341
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-40293.json