CVE-2026-55689
OpenFGA: OIDC audience validation skipped when --authn-oidc-audience is unset
CVSS Score
6.8
EPSS Score
0.3%
EPSS Percentile
22th
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.
| CWE | CWE-287 |
| Vendor | openfga |
| Product | openfga |
| Published | Jul 9, 2026 |
| Last Updated | Jul 10, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None
Affected Versions
openfga / openfga
< 1.18.0
References
github.com: https://github.com/openfga/openfga/security/advisories/GHSA-hcxc-wf8j-23hv github.com: https://github.com/openfga/openfga/commit/44596773b2e62738720ef215bf7fa04352954271 github.com: https://github.com/openfga/helm-ch github.com: https://github.com/openfga/helm-charts/releases/tag/openfga-0.3.9 github.com: https://github.com/openfga/openfga/releases/tag/v1.18.0