CVE-2026-102139 (GCVE-0-2026-102139)

Vulnerability from cvelistv5 – Published: 2026-09-30 20:11 – Updated: 2026-09-30 20:11
VLAI
Title
Kiteworks Email Protection Gateway Incorrect Authorization
Summary
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.
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
  • CWE-863 - Incorrect Authorization
Impacted products
Vendor Product Version CPE status
Kiteworks Email Protection Gateway Affected: 0 , < 9.5.1 (custom)
Unaffected: 9.5.1
guessed Create a notification for this product.
Date Public
2026-09-30 00:00
Show details on NVD website

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      ],
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            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
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            "version": "3.1"
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        },
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    "datePublished": "2026-09-30T20:11:17.678Z",
    "dateReserved": "2026-09-28T17:39:13.564Z",
    "dateUpdated": "2026-09-30T20:11:17.678Z",
    "state": "PUBLISHED"
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        ],
        "id": "CVE-2026-102139",
        "lastModified": "2026-10-01T02:17:43.350",
        "metrics": {
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  }
}



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