---
id: CVE-2026-40293
title: >-
  OpenFGA: github.com/openfga/openfga: OpenFGA: Information disclosure of
  preshared API key via playground endpoint (CVE-2026-40293)
summary: >-
  A flaw was found in OpenFGA, an authorization/permission engine. When OpenFGA
  is configured to use preshared-key authentication and the built-in playground
  is enabled and accessible beyond localhost or trusted networks, a remote
  attacker c…
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'
cvssSource: vendor
cwe:
  - CWE-201
  - CWE-200
vendor: Red Hat
product: Multicluster Global Hub 1.7.3
affected:
  - ceph_storage 6
  - ceph_storage 9
  - multicluster_global_hub 1.7.3
  - advanced_cluster_management_for_kubernetes 2.14
  - advanced_cluster_management_for_kubernetes 2.15
patched:
  - multicluster_global_hub 1.7.3
  - advanced_cluster_management_for_kubernetes 2.14
  - advanced_cluster_management_for_kubernetes 2.15
published: '2026-04-17'
updated: '2026-09-21'
sourceUpdated: '2026-09-21T15:40:57+00:00'
source: CSAF
sourceUrl: 'https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-40293.json'
references:
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-40293.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-40293'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2459341'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-40293'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-40293'
  - url: 'https://github.com/openfga/openfga/releases/tag/v1.14.0'
  - url: 'https://github.com/openfga/openfga/security/advisories/GHSA-68m9-983m-f3v5'
  - url: 'https://access.redhat.com/errata/RHSA-2026:24503'
  - url: 'https://access.redhat.com/errata/RHSA-2026:36882'
  - url: 'https://access.redhat.com/errata/RHSA-2026:24539'
  - url: 'https://github.com/openfga/openfga'
tags:
  - csaf
  - vex
  - red-hat
  - osv
  - go
  - cve.org
epss: 0.00287
epssPercentile: 0.21456
aliases:
  - GHSA-68m9-983m-f3v5
  - GO-2026-5170
ecosystem: go
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-04-20T16:19:32.851531Z'
scores:
  vendor: 7.5
  osv: 6.5
  cna: 6.5
ingestedAt: '2026-07-09T18:56:37.055Z'
---

## Overview

A flaw was found in OpenFGA, an authorization/permission engine. When OpenFGA is configured to use preshared-key authentication and the built-in playground is enabled and accessible beyond localhost or trusted networks, a remote attacker can exploit this vulnerability. The local server includes the preshared API key in the HTML response of the /playground endpoint, leading to information disclosure of the API key. This can allow unauthorized access to the system.

## Vendor advisories

- **RHSA-2026:24503** · Red Hat · fixed in: Multicluster Global Hub 1.7.3 · released 2026-06-08 · [advisory](https://access.redhat.com/errata/RHSA-2026:24503)
- **RHSA-2026:36882** · Red Hat · fixed in: Red Hat Advanced Cluster Management for Kubernetes 2.14 · released 2026-07-08 · [advisory](https://access.redhat.com/errata/RHSA-2026:36882)
- **RHSA-2026:24539** · Red Hat · fixed in: Red Hat Advanced Cluster Management for Kubernetes 2.15 · released 2026-06-08 · [advisory](https://access.redhat.com/errata/RHSA-2026:24539)
- **Red Hat VEX** · Important · affected: Red Hat Ceph Storage 6, Red Hat Ceph Storage 9 · no fix planned: Red Hat Ceph Storage 6, Red Hat Ceph Storage 9 · updated 2026-09-21 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-40293.json)

**OpenFGA: github.com/openfga/openfga: OpenFGA: Information disclosure of preshared API key via playground endpoint** — rated Important by Red Hat. Released 2026-04-17, updated 2026-09-21.

Affected:

- Red Hat Ceph Storage 6
- Red Hat Ceph Storage 9

Fixed:

- Multicluster Global Hub 1.7.3
- Red Hat Advanced Cluster Management for Kubernetes 2.14
- Red Hat Advanced Cluster Management for Kubernetes 2.15

No fix planned:

- Red Hat Ceph Storage 6
- Red Hat Ceph Storage 9

Not affected:

- Multicluster Global Hub 1.7.3
- Red Hat Advanced Cluster Management for Kubernetes 2.14
- Red Hat Advanced Cluster Management for Kubernetes 2.15

## Remediation

For more details, see the Red Hat Advanced Cluster Management for Kubernetes documentation:

https://docs.redhat.com/documentation/en-us/red_hat_advanced_cluster_management_for_kubernetes/2.16/html/multicluster_global_hub/index https://access.redhat.com/errata/RHSA-2026:24503
Before you apply this update, make sure all previously released errata
that are relevant to your system are applied.

For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258 https://access.redhat.com/errata/RHSA-2026:36882
Before you apply this update, make sure all previously released errata
that are relevant to your system are applied.

For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258 https://access.redhat.com/errata/RHSA-2026:24539

## Package advisory (CVE-2026-40293)

Affected packages:

- `github.com/openfga/openfga >= 0.1.4, < 1.14.0`

Patched in:

- `github.com/openfga/openfga 1.14.0`

Source: https://osv.dev/vulnerability/GHSA-68m9-983m-f3v5