All vulnerabilities
CVE-2026-102102GHSA-jxv9-v53f-c79m

Kiteworks Email Protection Gateway server-side request forgery

Kiteworks Email Protection GatewayNetwork & edge
Open in ThreatlineRecord JSON
CVSS
9.1Critical
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.81%Chance of exploitation activity in the next 30 days, higher than 56% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in9.5.0Fixed versionCVE List
Published30 Sep 2026Updated 2 Oct 2026CVE List

What fixes it

  • 9.5.0Email Protection GatewayCVE List
  • 9.5.0Kiteworks Email Protection Gateway, otherGitHub

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Description

Kiteworks Email Protection Gateway before version 9.5.0 is vulnerable to Server-Side Request Forgery (SSRF). A server-side request forgery (SSRF) weakness in Kiteworks Email Protection Gateway could allow a remote, unauthenticated attacker to induce the gateway to issue crafted requests to internal or otherwise unintended network destinations. The requests are triggered while the gateway retrieves an issuer certificate in an inbound message. Depending on the services reachable from the gateway, this could disclose sensitive internal information or disrupt gateway operation.

Text from CVE List

Affected versions 3

  • Email Protection Gatewayaffected: all versions before 9.5.0CVE List
  • Email Protection Gatewayunaffected: 9.5.0CVE List
  • Kiteworks Email Protection Gateway, other< 9.5.0GitHub

References 2