All vulnerabilities
CVE-2026-102128GHSA-qjvp-25r3-rgx6

Kiteworks Email Protection Gateway Improper Authentication

Kiteworks Email Protection GatewayNetwork & edge
Open in ThreatlineRecord JSON
CVSS
7.5High
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.21%Chance of exploitation activity in the next 30 days, higher than 10% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in9.5.1Fixed versionCVE List
Published30 Sep 2026Updated 1 Oct 2026CVE List

What fixes it

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 identity-verification weakness in Kiteworks Email Protection Gateway allowed the gateway to act on the Kiteworks platform on behalf of a user it had not authenticated, and to provision a platform account for an identity it did not already know. A remote, unauthenticated sender could potentially exploit this to obtain control of a platform account.

Text from CVE List

Affected versions 2

  • Email Protection Gatewayaffected: all versions before 9.5.1CVE List
  • Email Protection Gatewayunaffected: 9.5.1CVE List

References 2