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CVE-2026-55689
OpenFGA: OIDC audience validation skipped when --authn-oidc-audience is unset
Medium6.8EPSS 0.41%
- Published
- Updated
- Reserved
- Assigned by
- GitHub_M
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_MCNA (assigner) | 3.1 | Medium6.8 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N |
| NVDNVD · Analyzed | 3.1 | High8.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N |
- EPSS (exploitation in 30 days)
- 0.41% · top 65% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.8.
Weakness
Affected products
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- Gogithub.com/openfga/openfgaGHSA-hcxc-wf8j-23hv (opens in a new tab)
References (5)
- https://github.com/openfga/openfga/security/advisories/GHSA-hcxc-wf8j-23hv (opens in a new tab)x_refsource_CONFIRM
- https://github.com/openfga/openfga/commit/44596773b2e62738720ef215bf7fa04352954271 (opens in a new tab)x_refsource_MISC
- https://github.com/openfga/helm-ch (opens in a new tab)x_refsource_MISC
- https://github.com/openfga/helm-charts/releases/tag/openfga-0.3.9 (opens in a new tab)x_refsource_MISC
- https://github.com/openfga/openfga/releases/tag/v1.18.0 (opens in a new tab)x_refsource_MISC
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-hcxc-wf8j-23hv (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2026-55689)Record last updated .