OpenFGA is an authorization/permission engine built for developers and inspired by Google Zanzibar. OpenFGA is vulnerable to a denial of service attack when certain Check calls are executed against authorization models that contain circular relationship definitions. When the call is made, it's possible for the server to exhaust resources and die. Users are advised to upgrade to v1.3.2 and update any offending models. There are no known workarounds for this vulnerability. Note that for models which contained cycles or a relation definition that has the relation itself in its evaluation path, checks and queries that require evaluation will no longer be evaluated on v1.3.2+ and will return errors instead. Users who do not have cyclic models are unaffected.
History

Mon, 23 Sep 2024 21:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2023-09-26T20:58:17.826Z

Updated: 2024-09-23T20:20:10.674Z

Reserved: 2023-09-20T15:35:38.146Z

Link: CVE-2023-43645

cve-icon Vulnrichment

Updated: 2024-08-02T19:44:43.823Z

cve-icon NVD

Status : Modified

Published: 2023-09-27T15:19:34.330

Modified: 2024-11-21T08:24:32.093

Link: CVE-2023-43645

cve-icon Redhat

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