CVE-2026-102120

High

Description

A privilege escalation vulnerability in Kiteworks could have allowed an attacker who had already obtained code execution on one node of a clustered Kiteworks deployment to run operating system commands with elevated privileges on another node of the same cluster. Insufficient input validation in an internal cluster management function let attacker-supplied values reach a privileged execution context; exploitation requires existing access to a node in the cluster, and the affected function is not reachable from outside the cluster.

SeverityHigh
CVSS8.8
Exploit probability—
ProductAccellion Kiteworks
PublishedSep 30, 2026
First seenSep 30, 2026

How to fix

Update
  • accellion kiteworks9.5.1 or later

Affected products

ProductAffected versionsFixed in
accellion kiteworksv < 9.5.19.5.1

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CVE-2026-102120 · Accellion Kiteworks · Dark Radar