CVE-2026-102139
MEDIUMCVSS 6.5Description
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.
Timeline
Published:September 30th, 2026 9:17 PM
Last modified:October 7th, 2026 3:01 PM
CVSS Scoring
CVSS v3: 6.5 (MEDIUM)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Affected Software
From NVD CPE configuration data
Vendors
accellion
Products
kiteworks
References & Reports
Advisories, patches, and third-party reports
Source: NIST NVD · Data may lag official sources by up to one minute