{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "0.4.80"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7648c3412b403a29f04967c4b4e9725e228791d4"
            },
            {
              "fixed": "515e2cc4300ace55650ae366414cd51ef3d675df"
            }
          ],
          "repo": "https://github.com/decolua/9router",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-7cfm-pqrj-xgq7"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-307"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55501.json"
  },
  "details": "9Router is an AI router \u0026 token saver. Prior to 0.4.80, the dashboard login rate limiter in src/lib/auth/loginLimiter.js derives the client identity from the attacker-controlled X-Forwarded-For HTTP header, and src/app/api/auth/login/route.js uses that spoofable value for checkLock and recordFail. A remote attacker can rotate the X-Forwarded-For value on each login attempt to receive a fresh rate-limit bucket, bypass the 5-attempt threshold and progressive lockout durations, and perform unlimited brute-force attempts against the dashboard password. This issue is fixed in version 0.4.80.",
  "id": "CVE-2026-55501",
  "modified": "2026-07-15T01:48:59.339397432Z",
  "published": "2026-07-10T15:23:53.709Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/decolua/9router/releases/tag/v0.4.80"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55501.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/decolua/9router/security/advisories/GHSA-7cfm-pqrj-xgq7"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-55501"
    },
    {
      "type": "FIX",
      "url": "https://github.com/decolua/9router/commit/7648c3412b403a29f04967c4b4e9725e228791d4"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "9router: Login brute-force protection bypass via spoofed X-Forwarded-For header"
}