CVE-2026-102103

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 a certificate revocation list in an inbound message. Depending on the services reachable from the gateway, this could disclose sensitive internal information or disrupt gateway operation.

Score

CVSS 3.1 9.1 Critical

Status

Analyzed - 9119a7d8-5eab-497f-8521-727c672e3725

Published

2026-09-30

Last modified

2026-10-08

Weaknesses

CWE-918

Affected products

• Kiteworks (Accellion)
• Email Protection Gateway (Kiteworks)

References

• https://github.com/kiteworks/security-advisories/security/advisories/GHSA-p435-6c3j-4gh5
• https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/VA/white/2026/va-26-274-01.json