CVE-2026-102139: An authorization check in the large file exchange feature of Kiteworks Email Protection Gateway did not correctly establish that the requesting user was a…

PriorityP337medium6.5CVSS 3.1

AVNACLPRLUINSUCHINAN

EPSS

0.26%

15.9th percentile

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.

Affected

1 ranges

Vendor	Product	Version range	Fixed in
kiteworks	email_protection_gateway	< 9.5.1	9.5.1

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