ntopng: authenticated (non-admin) OS command injection via the vulnerability-scan `scan_ports` parameter (`nmap` argument reaches `popen`)

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-12",
  "epss": 0.01072,
  "percentile": 0.6536
}

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-10",
  "epss": 0.01072,
  "percentile": 0.65177
}

Stored CNA snapshot at this observation.

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-82413",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-11-09T16:12:14.170693Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-11-09T16:51:24.190Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "ntopng",
          "vendor": "ntop",
          "versions": [
            {
              "status": "affected",
              "version": "< 6.7.260717"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "ntopng is a web-based network traffic monitoring application. Prior to 6.7.260717, scripts/lua/rest/v2/add/host/to_scan.lua and scripts/lua/rest/v2/exec/host/schedule_vulnerability_scan.lua accept scan_ports from any authenticated session, including non-administrator users, while deployments with login disabled expose the same request without authentication. The endpoints validate scan_ports with validateSingleWord, which permits shell metacharacters, and persist the value for the minute vulnerability-scan scheduler. The scheduler concatenates the value into an nmap command through nmap_scan_host and executes it through ntop.execCmd or ntop.execCmdAsync using popen. For the tcp_portscan and cve modules, a preliminary nmap -sn probe must first report the target as up before the attacker-controlled ports are used. When nmap is installed, this command injection allows arbitrary operating-system commands to execute as the ntopng service account without further user interaction. This issue is fixed in version 6.7.260717."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-77",
              "description": "CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection')",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-78",
              "description": "CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-88",
              "description": "CWE-88: Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-11-05T16:04:14.697Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/ntop/ntopng/security/advisories/GHSA-9xj6-f266-r46p",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/ntop/ntopng/security/advisories/GHSA-9xj6-f266-r46p"
        },
        {
          "name": "https://github.com/ntop/ntopng/commit/fda269014c6a8a445c2c893cf9d2fad0128364a5",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/ntop/ntopng/commit/fda269014c6a8a445c2c893cf9d2fad0128364a5"
        }
      ],
      "source": {
        "advisory": "GHSA-9xj6-f266-r46p",
        "discovery": "UNKNOWN"
      },
      "title": "ntopng: authenticated (non-admin) OS command injection via the vulnerability-scan `scan_ports` parameter (`nmap` argument reaches `popen`)"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-82413",
    "datePublished": "2026-11-05T16:04:14.697Z",
    "dateReserved": "2026-08-28T22:00:43.514Z",
    "dateUpdated": "2026-11-09T16:51:24.190Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}