{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "0.5.4"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "7354c5e5f4d0e53d8de9d6edf1773dce74144fec"
            }
          ],
          "repo": "https://github.com/decolua/9router",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-8g4w-4ffg-8vgx"
  ],
  "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"
  },
  "details": "9Router is an AI router \u0026 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.",
  "id": "CVE-2026-56677",
  "modified": "2026-08-20T03:30:33.744958024Z",
  "published": "2026-08-17T21:14:06.082Z",
  "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"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "9Router: Authenticated Server-Side Request Forgery (SSRF) via OIDC Provider Test Endpoint"
}