{"id":"CVE-2026-55689","state":"PUBLISHED","title":"OpenFGA: OIDC audience validation skipped when --authn-oidc-audience is unset","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.","publishedAt":"2026-07-09T21:06:22.543Z","updatedAt":"2026-07-10T13:45:39.194Z","severity":{"score":6.8,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["openfga openfga"],"affected":[{"vendor":"openfga","product":"openfga","versions":[{"version":"< 1.18.0","status":"affected"}]}],"references":["https://github.com/openfga/openfga/security/advisories/GHSA-hcxc-wf8j-23hv","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"],"weaknesses":["CWE-287"],"ingestedAt":"2026-10-29T20:12:24.861Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/55xxx/CVE-2026-55689.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-55689","state":"PUBLISHED","datePublished":"2026-07-09T21:06:22.543Z","dateUpdated":"2026-07-10T13:45:39.194Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-06-17T00:13:10.650Z"},"containers":{"cna":{"title":"OpenFGA: OIDC audience validation skipped when --authn-oidc-audience is unset","descriptions":[{"lang":"en","value":"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":[{"vendor":"openfga","product":"openfga","versions":[{"version":"< 1.18.0","status":"affected"}]}],"references":[{"url":"https://github.com/openfga/openfga/security/advisories/GHSA-hcxc-wf8j-23hv","name":"https://github.com/openfga/openfga/security/advisories/GHSA-hcxc-wf8j-23hv","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/openfga/openfga/commit/44596773b2e62738720ef215bf7fa04352954271","name":"https://github.com/openfga/openfga/commit/44596773b2e62738720ef215bf7fa04352954271","tags":["x_refsource_MISC"]},{"url":"https://github.com/openfga/helm-ch","name":"https://github.com/openfga/helm-ch","tags":["x_refsource_MISC"]},{"url":"https://github.com/openfga/helm-charts/releases/tag/openfga-0.3.9","name":"https://github.com/openfga/helm-charts/releases/tag/openfga-0.3.9","tags":["x_refsource_MISC"]},{"url":"https://github.com/openfga/openfga/releases/tag/v1.18.0","name":"https://github.com/openfga/openfga/releases/tag/v1.18.0","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.8,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-287","lang":"en","description":"CWE-287: Improper Authentication","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-07-09T21:06:22.543Z"},"source":{"advisory":"GHSA-hcxc-wf8j-23hv","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-07-10T13:45:33.367225Z","id":"CVE-2026-55689","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-07-10T13:45:39.194Z"}}]}}}