Description
Kiteworks Email Protection Gateway did not sufficiently validate the content of an uploaded backup, and allowed an administrator to influence how the application loaded it. An authenticated administrator could potentially use this to execute arbitrary code on the gateway as the underlying service account.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Kiteworks | Email Protection Gateway | < 9.5.1 | 9.5.1 |
Advisories 3
- NCSC-2026-0408 Kwetsbaarheden verholpen in Kiteworks NCSC-NL (Netherlands) · Oct 8, 2026
- WID-SEC-2026-3695 Kiteworks: Mehrere Schwachstellen BSI CERT-Bund (WID) · Sep 30, 2026
- VA-26-274-01 Kiteworks multiple vulnerabilities CISA ICS & IT advisories · Sep 30, 2026