6.5

CVE-2026-102139

Kiteworks Email Protection Gateway Incorrect Authorization

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Accellion ≫ Kiteworks Version < 9.5.1
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.26% 0.158
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
cisa-cg 6.5 2.8 3.6
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CWE-639 Authorization Bypass Through User-Controlled Key

The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.

CWE-863 Incorrect Authorization

The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.

https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/VA/white/2026/va-26-274-01.json
Broken Link
https://github.com/kiteworks/security-advisories/security/advisories/GHSA-fp46-xhg8-vpgm
Vendor Advisory