{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "2.1.0"
              },
              {
                "fixed": "2.3.15"
              }
            ],
            "source": [
              "DESCRIPTION",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "1d70d2992ec7ee5fac2e12ce15d0ea8005a589d4"
            },
            {
              "fixed": "36b742a7e9a81ed782363dd19efd77b7030fbd0f"
            },
            {
              "fixed": "c726930833937a0aebb2a924064f236faea889f6"
            }
          ],
          "repo": "https://github.com/nezhahq/nezha",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-rj3w-jrj7-x7c3"
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-601"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/111xxx/CVE-2026-111385.json"
  },
  "details": "Nezha from 2.1.0 before 2.3.15 contains a host header injection vulnerability in mintTransferTool that builds fs.download_url and fs.upload_url transfer URLs from the unvalidated Host header. Attackers who control the Host header seen on a victim's MCP request can redirect file uploads or capture one-time download tokens and replay them to exfiltrate files.",
  "id": "CVE-2026-111385",
  "modified": "2026-10-17T02:31:05.403052582Z",
  "published": "2026-10-16T01:17:54.057Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/111xxx/CVE-2026-111385.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/nezhahq/nezha/security/advisories/GHSA-rj3w-jrj7-x7c3"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-111385"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/nezha-2.1.0-before-2.3.15-host-header-injection-via-mcp-transfer-tools"
    },
    {
      "type": "FIX",
      "url": "https://github.com/nezhahq/nezha/commit/36b742a7e9a81ed782363dd19efd77b7030fbd0f"
    },
    {
      "type": "FIX",
      "url": "https://github.com/nezhahq/nezha/commit/c726930833937a0aebb2a924064f236faea889f6"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Nezha 2.1.0 before 2.3.15 Host Header Injection via MCP Transfer Tools"
}