VDB
CVE-2026-102103
CVE-2026-102103
PUBLISHED
CVSS 9.1 CRITICAL
Reported by cisa-cg · Published September 30, 2026
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.
Risk Scores
CVSS 3.1
9.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Kiteworks | Email Protection Gateway | 0, 9.5.0 |
| Kiteworks | Email Protection Gateway | 0, 9.5.0, 0 |
Timeline
- Sep 30, 2026 Coalition ESS Score
- Sep 30, 2026 CVE Published
- Oct 1, 2026 EPSS Score
- Oct 1, 2026 CVE Updated
- Oct 2, 2026 EPSS Score
- Oct 7, 2026 EPSS Score