CVE-2026-102120 Kiteworks Core OS Command Injection

What is CVE-2026-102120?

CVE-2026-102120 is a high-severity command injection vulnerability in Accellion Kiteworks, published on 30 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official 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.

Weakness: CWE-78, CWE-269

Which versions are affected by CVE-2026-102120?

It affects 1 product.

Products include Accellion Kiteworks.

How do I fix CVE-2026-102120?

No fix has been published for CVE-2026-102120 yet. Limit exposure of the affected software until one is available.

Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.

Is CVE-2026-102120 being exploited?

There is no known exploitation of CVE-2026-102120 in the wild and no public exploit code.

Other vulnerabilities in Accellion Kiteworks

• CVE-2026-102115 Kiteworks Core Authentication Bypass in the Password Reset Workflow Critical 9.8
• CVE-2026-102149 Kiteworks Email Protection Gateway Improper Access Control Critical 9.4
• CVE-2026-102147 Kiteworks Core Administrative Account Takeover through Stored Cross-site Scripting (XSS) Critical 9.3
• CVE-2026-102095 Kiteworks Email Protection Gateway server-side request forgery Critical 9.1
• CVE-2026-102102 Kiteworks Email Protection Gateway server-side request forgery Critical 9.1

All Accellion Kiteworks vulnerabilities

Sources

• CVE record
• NVD
• OSV
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