by Kastro
Paper/Archive/CVE-2026-102095

CVE-2026-102095

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

EPSS 0.4%CVSS 9.1
critical.is priorityof 100
34
CVSS 9.1 (CNA)9.1 / 10 × 3027.3Not in CISA KEV+300.0EPSS percentile 35.0.350 × 207.0No 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. Kiteworks Email Protection Gateway performed server-side fetches of URLs contained in the message content it processed, without adequately restricting the fetch destination. A remote, unauthenticated sender could craft a message that caused the gateway to issue requests to internal services and cloud instance metadata endpoints and return the responses, potentially disclosing sensitive internal data and, depending on the internal service reached, affecting its state.

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-f252-4w8q-g74grefraw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/VA/white/2026/va-26-274-01.json