Vulnerability · Published Sep 30, 2026 · Assigned by cisa-cg
CVE-2026-102146Kiteworks Email Protection Gateway Arbitrary File Write through Server-Side Template Injection
Medium 6.5
In plain English
A medium-severity security flaw in Email Protection Gateway from Kiteworks. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.0% (higher than 63% of all known vulnerabilities).
Official description
An authenticated Email Protection Gateway administrator holding only limited, delegated permissions could write files with attacker-controlled content to arbitrary locations accessible to the Email Protection Gateway service account. This exceeds the administrator's intended privileges and could be used to alter application files and configuration or to disrupt the availability of the service.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Kiteworks | Email Protection Gateway | 0 – before 9.5.1 |
Weakness: CWE-73 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H