What’s Vulnerable › Vulnerabilities

CVE-2026-102142: Kiteworks Core Remote Code Execution through Server-Side Template Injection

• Severity: high (CVSS 7.2 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-30 · updated 2026-10-07
• Weakness: CWE-1336

Description

A system notification template on the Kiteworks appliance was rendered by a template engine that evaluated expressions contained in the stored template body. An authenticated System Administrator could potentially store a crafted template that executed operating-system commands on the appliance when the notification was next sent.

Affected products

• Kiteworks Email Protection Gateway: before 9.5.1 — fixed in 9.5.1

How to fix

Upgrade to a fixed version: Kiteworks Email Protection Gateway 9.5.1. Check the vendor advisory for mitigations.

References

• https://github.com/kiteworks/security-advisories/security/advisories/GHSA-gmgg-7xhc-75f9
• https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/VA/white/2026/va-26-274-01.json

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