OpenFGA Playground Preshared Key Exposure
Published Apr 17, 2026
7.5
HIGHCVSS 3.1
EPSS 0.50%
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.`
Affected products
-
- Version >= 0.1.4, < 1.14.0StatusaffectedConstraints-
- Version
No data.
Multicluster Global Hub 1.7.3
multicluster-globalhub/multicluster-globalhub-grafana-rhel9:1779925273
Fixed · RHSA-2026:24503
Red Hat Advanced Cluster Management for Kubernetes 2.14
rhacm2/acm-grafana-rhel9:1782693386
Fixed · RHSA-2026:36882
Red Hat Advanced Cluster Management for Kubernetes 2.15
rhacm2/acm-grafana-rhel9:1780677003
Fixed · RHSA-2026:24539
Red Hat Ceph Storage 6
rhceph/rhceph-6-dashboard-rhel9
Out of support scope
Red Hat Ceph Storage 9
rhceph/grafana-rhel10
Out of support scope
| Product | Package | State | Advisory |
|---|---|---|---|
| Multicluster Global Hub 1.7.3 | multicluster-globalhub/multicluster-globalhub-grafana-rhel9:1779925273 | Fixed | RHSA-2026:24503 |
| Red Hat Advanced Cluster Management for Kubernetes 2.14 | rhacm2/acm-grafana-rhel9:1782693386 | Fixed | RHSA-2026:36882 |
| Red Hat Advanced Cluster Management for Kubernetes 2.15 | rhacm2/acm-grafana-rhel9:1780677003 | Fixed | RHSA-2026:24539 |
| Red Hat Ceph Storage 6 | rhceph/rhceph-6-dashboard-rhel9 | Out of support scope | n/a |
| Red Hat Ceph Storage 9 | rhceph/grafana-rhel10 | Out of support scope | n/a |
github.com/openfga/openfga
Go
Introduced 0.1.4 Fixed 1.14.0
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| Go | github.com/openfga/openfga | 0.1.4 | 1.14.0 |
Remediation
Red Hat statement
This is an Important information disclosure flaw in OpenFGA, an authorization engine used in Red Hat products. The vulnerability occurs when OpenFGA is configured with preshared-key authentication and its built-in playground is enabled and exposed beyond localhost or trusted networks. The /playground endpoint, intended for development, can then reveal the preshared API key, potentially leading to unauthorized access.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
1 other source (Red Hat) ▾
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
YesTechnical Impact
PartialDecision
n/aAssessed Apr 20, 2026 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
Score over time
Apr–Oct 2026- EPSS v4
- EPSS v5
Percentile over time
- EPSS v4
- EPSS v5
Table of values (3 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 0.50% (0.00501) | 40.75th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.20% (0.00203) | 10.30th | v5 (v2026.06.15) |
| Apr 18, 2026 | 0.06% (0.00056) | 17.50th | v4 (v2025.03.14) |
References (11)
- 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 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2459341 Issue Tracking
- https://github.com/advisories/GHSA-68m9-983m-f3v5 Advisory
- https://github.com/openfga/openfga/releases/tag/v1.14.0 x_refsource_MISCProductRelease Notes
- https://github.com/openfga/openfga/security/advisories/GHSA-68m9-983m-f3v5 x_refsource_CONFIRMMitigationVendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-40293
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-40293.json
- https://www.cve.org/CVERecord?id=CVE-2026-40293
Change history (0)
No recorded changes yet.