Authentication mechanism absence or evasion In grafana
Description
OpenFGA is an authorization/permission engine built for developers. Prior to 1.18.0, when OpenFGA is configured to use OIDC authentication (authn.method=oidc, authn.oidc.issuer set) but authn.oidc.audience is left unset, the JWT audience claim on incoming bearer tokens is not validated. As a result, a validly-signed OIDC access token issued by the same identity provider for a completely different, unrelated application can be accepted by OpenFGA as a valid credential, allowing an attacker holding such a token to authenticate to OpenFGA and perform unauthorized authorization queries or writes. This issue is fixed in OpenFGA 1.18.0.
Mitigation
Update Impact
Minimal update. May introduce new vulnerabilities or breaking changes.
Ecosystem | Component | Affected version | Patched versions |
|---|---|---|---|
 go | 1.18.0 | ||
 rpm rhel10 | - | - |
Aliases
References