medium6.8
CVE-2026-55689
OpenFGA: OIDC audience validation skipped when --authn-oidc-audience is unset
Impact
OpenFGA is an authorization/permission engine built for developers. Prior to 1.18.0, OpenFGA's OIDC authenticator skipped JWT audience validation when authn.method was set to oidc, authn.oidc.issuer was configured, and authn.oidc.audience was not set, allowing a token minted for an unrelated service by the same identity provider to authenticate to OpenFGA. This issue is fixed in 1.18.0.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| go | github.com/openfga/openfga | <= 1.17.1 | 1.18.0 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Openfga | Helm Charts | before 0.3.9 |
| Openfga | Openfga | before 1.18.0 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-hcxc-wf8j-23hv
- https://github.com/openfga/openfga/security/advisories/GHSA-hcxc-wf8j-23hv
- https://nvd.nist.gov/vuln/detail/CVE-2026-55689
- https://github.com/openfga/openfga/commit/44596773b2e62738720ef215bf7fa04352954271
- https://github.com/openfga/helm-ch
- https://github.com/openfga/helm-charts/releases/tag/openfga-0.3.9
- https://github.com/openfga/openfga/releases/tag/v1.18.0