OpenFGA Playground Preshared Key Exposure_CVE-2026-40293

6.5 / 10

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

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.`

Basic Information

ID CVE-2026-40293

Source GitHub_M

Published Apr 17, 2026 at 20:47

Affected Product

Vendor openfga

Product openfga

Version >= 0.1.4, < 1.14.0

Affected Versions openfga openfga >= 0.1.4, < 1.14.0

CWE Classification

CWE-200

References

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    "published": "2026-04-17T20:47:06.804Z",
    "modified": "2026-04-17T20:47:06.804Z",
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