by Kastro
Paper/Archive/CVE-2026-102105

CVE-2026-102105

Kiteworks Email Protection Gateway — Kiteworks Email Protection Gateway server-side request forgery

EPSS 0.5%CVSS 9.1
critical.is priorityof 100
36
CVSS 9.1 (CNA)9.1 / 10 × 3027.3Not in CISA KEV+300.0EPSS percentile 44.4.444 × 208.9No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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 renders message content that references external resources. Depending on the services reachable from the gateway, this could disclose sensitive internal information or trigger unintended actions on internal systems.

Affected

ProductAffectedFixed inSource
Email Protection Gateway< 9.5.09.5.0CNA

Scores by source

cisa-cg (CNA)9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

advisorygithub.com/kiteworks/security-advisories/security/advisories/GHSA-hq47-4whq-9hgvwriteupraw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/VA/white/2026/va-26-274-01.json