CVE-2026-40293High· 7.5▾ TwilightA 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…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 41.3 · likelihood 0.1 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the vendor's CSAF advisory record, not NVD.
Exploit-prediction probability, daily snapshots since Jul 31.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CSAF
0.3%
7.5 → 6.5
high → medium
6.5 → 7.5
medium → high
7.5 → 6.5
high → medium
6.5 → 7.5
medium → high
7.5 → 6.5
high → medium
Last analysed / modified upstream
6.5 → 7.5
medium → high
0.3% → 0.5%
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.
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:
Fixed:
No fix planned:
Not affected:
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
Affected packages:
github.com/openfga/openfga >= 0.1.4, < 1.14.0Patched in:
github.com/openfga/openfga 1.14.0Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
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