{"id":"CVE-2026-56677","summary":"9Router: Authenticated Server-Side Request Forgery (SSRF) via OIDC Provider Test Endpoint","details":"9Router is an AI router & token saver. In 0.5.4 and earlier, the POST /api/auth/oidc/test endpoint in src/app/api/auth/oidc/test/route.js passes the user-controlled issuerUrl parameter to fetchOidcDiscovery() in src/lib/auth/oidc.js without restricting private or loopback destinations, allowing unauthenticated attackers when dashboard login is disabled to scan internal services and reflect OIDC discovery fields including token_endpoint and jwks_uri.","aliases":["GHSA-8g4w-4ffg-8vgx"],"modified":"2026-08-20T03:30:33.744958024Z","published":"2026-08-17T21:14:06.082Z","database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-306","CWE-918"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/56xxx/CVE-2026-56677.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/56xxx/CVE-2026-56677.json"},{"type":"ADVISORY","url":"https://github.com/decolua/9router/security/advisories/GHSA-8g4w-4ffg-8vgx"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-56677"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/decolua/9router","events":[{"introduced":"0"},{"last_affected":"7354c5e5f4d0e53d8de9d6edf1773dce74144fec"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"last_affected":"0.5.4"}],"source":"AFFECTED_FIELD"}}],"versions":["v0.5.4","v0.5.2","v0.4.80","v0.4.71","v0.4.66","v0.4.63","v0.4.62","v0.4.59","v0.4.58","v0.4.55","v0.4.52","v0.4.50","v0.4.49","v0.4.46","v0.4.44","v0.4.41","v0.4.39","v0.4.38","v0.4.37","v0.4.36","v0.4.33","v0.4.31","v0.4.30","v0.4.29","v0.4.28","v0.4.27","v0.4.25","v0.4.20","v0.4.19","v0.4.18","v0.4.16","v0.4.14","v0.4.13","v0.4.12","v0.4.11","v0.4.10","v0.4.8","v0.4.6","v0.4.4","v0.4.3","v0.4.2","v0.4.1","v0.3.98","v0.3.97","v0.3.91","v0.3.90","v0.3.89","v0.3.87","v0.3.86","v0.3.83","v0.3.75","v0.3.47","v0.3.42","v0.3.34","v0.3.17","v0.2.89","v0.2.79","v0.2.71","v0.2.70","v0.2.67","v0.2.56","v0.2.52","v0.2.43","v0.2.36","v0.2.31","v0.2.27","v0.2.21"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-56677.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L"}]}