CVE-2026-102131

High

Description

Kiteworks Email Protection Gateway rejected certain configuration settings, but its validation did not recognize every form in which they could be supplied. An authenticated administrator could potentially use an unrecognized form to have a file of their choosing written to the gateway and executed, resulting in code execution as the gateway service account.

SeverityHigh
CVSS7.2
Exploit probability—
ProductAccellion Kiteworks
PublishedSep 30, 2026
First seenSep 30, 2026

How to fix

Update
  • accellion kiteworks9.5.0 or later

Affected products

ProductAffected versionsFixed in
accellion kiteworksv < 9.5.09.5.0

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.