CVE-2026-102146GHSA-5pgq-v8g2-rg2f
Kiteworks Email Protection Gateway Arbitrary File Write through Server-Side Template Injection
Kiteworks Email Protection GatewayNetwork & edge
CVSS
6.5MediumExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)1.01%Chance of exploitation activity in the next 30 days, higher than 62% of CVEs. Scored 23 Oct 2026FIRST EPSS
What fixes it
- 9.5.1Email Protection GatewayCVE List
A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.
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.
Text from CVE List
Affected versions 2
- Email Protection Gatewayaffected: all versions before 9.5.1CVE List
- Email Protection Gatewayunaffected: 9.5.1CVE List