{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:nitro:nitro:*:*:*:*:*:node.js:*:*",
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "2.13.4"
              }
            ],
            "source": [
              "CPE_RANGE",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "f92e684736169f8b1d563fd6154060643d05f4bb"
            },
            {
              "fixed": "c467f13eacaa3100f565b0ec57eefecad847aac4"
            }
          ],
          "repo": "https://github.com/nitrojs/nitro",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-5w89-w975-hf9q"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-22"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44373.json"
  },
  "details": "Nitro is a next generation server toolkit. Prior to 3.0.260429-beta, an attacker could bypass a proxy route rule by sending percent-encoded path traversal (..%2f) in the URL, causing Nitro to forward a request that the upstream resolved outside the configured scope. This vulnerability is fixed in 3.0.260429-beta.",
  "id": "CVE-2026-44373",
  "modified": "2026-07-08T05:39:28.892051676Z",
  "published": "2026-05-13T20:26:28.255Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/nitrojs/nitro/releases/tag/v2.13.4"
    },
    {
      "type": "WEB",
      "url": "https://github.com/nitrojs/nitro/releases/tag/v3.0.260429-beta"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44373.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/nitrojs/nitro/security/advisories/GHSA-5w89-w975-hf9q"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-44373"
    },
    {
      "type": "FIX",
      "url": "https://github.com/nitrojs/nitro/pull/4222"
    },
    {
      "type": "FIX",
      "url": "https://github.com/nitrojs/nitro/pull/4223"
    }
  ],
  "schema_version": "1.7.5",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Nitro: Proxy scope bypass via percent-encoded path traversal in `routeRules`"
}