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CVE-2026-102139

Estado: Pendiente de análisisMedia (6.5)—

An authorization check in the large file exchange feature of Kiteworks Email Protection Gateway did not correctly establish that the requesting user was a party to the package being requested. An authenticated user of that optional feature could read the subject, message body, and attachments of packages they neither sent nor received.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Kiteworks — Email Protection GatewayAI

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2026-102139",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-102139",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-10-01T13:26:22.762488Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "9119a7d8-5eab-497f-8521-727c672e3725",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 6.5,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "9119a7d8-5eab-497f-8521-727c672e3725",
      "affectedData": [
        {
          "vendor": "Kiteworks",
          "product": "Email Protection Gateway",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "9.5.1",
              "versionType": "custom"
            },
            {
              "status": "unaffected",
              "version": "9.5.1"
            }
          ],
          "defaultStatus": "unknown"
        }
      ]
    }
  ],
  "published": "2026-09-30T21:17:02.663",
  "references": [
    {
      "url": "https://github.com/kiteworks/security-advisories/security/advisories/GHSA-fp46-xhg8-vpgm",
      "source": "9119a7d8-5eab-497f-8521-727c672e3725"
    },
    {
      "url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/VA/white/2026/va-26-274-01.json",
      "source": "9119a7d8-5eab-497f-8521-727c672e3725"
    }
  ],
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "9119a7d8-5eab-497f-8521-727c672e3725",
      "description": [
        {
          "lang": "en",
          "value": "CWE-639"
        },
        {
          "lang": "en",
          "value": "CWE-863"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "An authorization check in the large file exchange feature of Kiteworks Email Protection Gateway did not correctly establish that the requesting user was a party to the package being requested. An authenticated user of that optional feature could read the subject, message body, and attachments of packages they neither sent nor received."
    }
  ],
  "lastModified": "2026-10-01T14:17:18.493",
  "sourceIdentifier": "9119a7d8-5eab-497f-8521-727c672e3725"
}