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Medium

Nitro: Open Redirect via Protocol-Relative URL Bypass in Wildcard Route Rules

Type: advisorySources: OSV

Nitro is a next generation server toolkit. Prior to 3.0.260429-beta, an attacker could turn a redirect route rule using wildcards rewrite into a cross-host redirect by sliding an extra slash in after the rule prefix. This vulnerability is fixed in 3.0.260429-beta.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2026-44372
Confirmed fixed CVEs
Not specified
Updated in this feed
4 Nov 2026, 09:00 UTC · Revision 1

Source evidence

Nitro: Open Redirect via Protocol-Relative URL Bypass in Wildcard Route Rules

core-osv · Original source

Published 13 May 2026, 20:30 UTC

Nitro is a next generation server toolkit. Prior to 3.0.260429-beta, an attacker could turn a redirect route rule using wildcards rewrite into a cross-host redirect by sliding an extra slash in after the rule prefix. This vulnerability is fixed in 3.0.260429-beta.

osv:CVE-2026-44372
Complete source record
{
  "id": "ddbfafd53fc2d60596958069935d57b56a5c44c93ad6dab65a526df095000c4e",
  "url": "https://osv.dev/vulnerability/CVE-2026-44372",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Nitro: Open Redirect via Protocol-Relative URL Bypass in Wildcard Route Rules",
    "summary": "Nitro is a next generation server toolkit. Prior to 3.0.260429-beta, an attacker could turn a redirect route rule using wildcards rewrite into a cross-host redirect by sliding an extra slash in after the rule prefix. This vulnerability is fixed in 3.0.260429-beta.",
    "evidence": "osv:CVE-2026-44372",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-44372",
      "aliases": [
        "CVE-2026-44372",
        "GHSA-9phm-9p8f-hw5m"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/nitrojs/nitro",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "f92e684736169f8b1d563fd6154060643d05f4bb"
                },
                {
                  "fixed": "c467f13eacaa3100f565b0ec57eefecad847aac4"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:nitro:nitro:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2.13.4"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "f92e684736169f8b1d563fd6154060643d05f4bb"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v2.13.4"
                  },
                  {
                    "range": [
                      {
                        "fixed": "c467f13eacaa3100f565b0ec57eefecad847aac4"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v3.0.260429-beta"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v3.0.260415-beta",
            "v2.13.3",
            "v3.0.260311-beta",
            "v3.0.1-alpha.2",
            "v2.13.0",
            "v3.0.1-alpha.1",
            "v2.12.8",
            "v3.0.1-alpha.0",
            "v2.12.0",
            "v2.11.13",
            "v2.11.9",
            "v2.11.6",
            "v2.11.5",
            "v2.11.4",
            "v2.11.3",
            "v2.11.2",
            "v2.11.1",
            "v2.11.0",
            "v2.10.4",
            "v2.10.3",
            "v2.10.2",
            "v2.10.1",
            "v2.10.0",
            "v2.9.6",
            "v2.9.5",
            "v2.9.4",
            "v2.9.3",
            "v2.9.2",
            "v2.9.1",
            "v2.9.0",
            "v2.8.1",
            "v2.8.0",
            "v2.7.1",
            "v2.7.0",
            "v2.6.3",
            "v2.6.2",
            "v2.6.1",
            "v2.6.0",
            "v0.0.5",
            "v0.0.4",
            "v2.5.2",
            "v2.5.1",
            "v2.5.0",
            "v0.0.3",
            "v0.0.2",
            "v2.3.4",
            "v2.4.0",
            "v2.3.3",
            "v2.3.2",
            "v2.3.1",
            "v2.3.0",
            "v2.2.3",
            "v2.2.2",
            "v2.2.1",
            "v2.2.0",
            "v2.1.2",
            "v2.1.1",
            "v2.1.0",
            "v2.0.0",
            "v2.0.0-rc.1",
            "v2.0.0-rc.0",
            "v1.0.0",
            "v1.0.0-1",
            "v1.0.0-0",
            "v0.6.2",
            "v0.6.1",
            "v0.6.0",
            "v0.5.4",
            "v0.5.3",
            "v0.5.2",
            "v0.5.1",
            "v0.5.0",
            "v0.4.24",
            "v0.4.23",
            "v0.4.22",
            "v0.4.21",
            "v0.4.20",
            "v0.4.19",
            "v0.4.18",
            "v0.4.17",
            "v0.4.16",
            "v0.4.15",
            "v0.4.14",
            "v0.4.13",
            "v0.4.12",
            "v0.4.11",
            "v0.4.10",
            "v0.4.9",
            "v0.4.8",
            "v0.4.7",
            "v0.4.6",
            "v0.4.5",
            "v0.4.4",
            "v0.4.3",
            "v0.4.2",
            "v0.4.1",
            "v0.4.0",
            "v0.3.12",
            "v0.3.11",
            "v0.3.10",
            "v0.3.9",
            "v0.3.8",
            "v0.3.7",
            "v0.3.6",
            "v0.3.5",
            "v0.3.4",
            "v0.3.3",
            "v0.3.2",
            "v0.3.1",
            "v0.3.0",
            "v0.2.11",
            "v0.2.10",
            "v0.2.9",
            "v0.2.8",
            "v0.2.7",
            "v0.2.6",
            "v0.2.5",
            "v0.2.4",
            "v0.2.3",
            "v0.2.2",
            "v0.2.1",
            "v0.2.0",
            "v0.1.4",
            "v0.1.3",
            "v0.1.2",
            "v0.1.1",
            "v0.1.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-44372.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:34.245290800Z",
      "provider": "osv",
      "references": [
        "https://github.com/nitrojs/nitro/releases/tag/v2.13.4",
        "https://github.com/nitrojs/nitro/releases/tag/v3.0.260429-beta",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44372.json",
        "https://github.com/nitrojs/nitro/security/advisories/GHSA-9phm-9p8f-hw5m",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-44372",
        "https://github.com/nitrojs/nitro/pull/4236"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-601"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44372.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-44372",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 501294,
  "published_at": "2026-05-13T20:30:44.943+00:00"
}