Vulnerability Description
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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Openfga | Helm Charts | < 0.3.9 |
| Openfga | Openfga | < 1.18.0 |
Related Weaknesses (CWE)
References
- https://github.com/openfga/helm-chBroken Link
- https://github.com/openfga/helm-charts/releases/tag/openfga-0.3.9ProductRelease Notes
- https://github.com/openfga/openfga/commit/44596773b2e62738720ef215bf7fa043529542Patch
- https://github.com/openfga/openfga/releases/tag/v1.18.0ProductRelease Notes
- https://github.com/openfga/openfga/security/advisories/GHSA-hcxc-wf8j-23hvVendor Advisory
FAQ
What is CVE-2026-55689?
CVE-2026-55689 is a vulnerability with a CVSS score of 6.8 (MEDIUM). 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 w...
How severe is CVE-2026-55689?
CVE-2026-55689 has been rated MEDIUM with a CVSS base score of 6.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-55689?
Check the references section above for vendor advisories and patch information. Affected products include: Openfga Helm Charts, Openfga Openfga.