GHSA-hr9r-8phq-5x8j OpenFGA vulnerable to denial of service due to circular relationship

• Go github.com/openfga/openfga: < 1.1.1 → fixed in 1.1.1

Overview OpenFGA versions v1.1.0 and prior are vulnerable to a DoS attack when certain Check and ListObjects calls are executed against authorization models that contain circular relationship definitions. Am I Affected? You are affected by this vulnerability if you are using OpenFGA v1.1.0 or earlier, and if you are executing certain Check or ListObjects calls against a vulnerable authorization model. To see which of your models could be vulnerable to this attack, download OpenFGA v1.2.0 and run the following command: ``` ./openfga validate-models --datastore-engine --datastore-uri | jq .[] | select(.Error | contains("loop")) ``` replacing the variables `` and `` as needed. Fix Upgrade to v1.1.1. Backward Compatibility If you are not passing an invalid authorization model (as identified by running `./openfga validate-models`) as a parameter of your Check and ListObjects calls, this upgrade is backwards compatible. Otherwise, OpenFGA v1.1.1 will start returning HTTP 400 status codes on those calls.