CVE-2026-102141: Kiteworks Core privilege escalation in cluster-management operations

CVE-2026-102141 · Severity: medium · CVSS 6.7 · Published 2026-09-30

Kiteworks Core, a secure file transfer and collaboration platform, contains a privilege escalation vulnerability in its cluster-management operations. An attacker with root access on one cluster node could write and execute arbitrary files as root on other nodes in the cluster. Exploitation requires backend root access on a cluster node, making this a risk primarily for compromised infrastructure administrators.

Technologies: Kiteworks Core. Vendors: Kiteworks.

Quick answers

Is CVE-2026-102141 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-102141 being exploited in the wild.
How severe is CVE-2026-102141?
Medium severity, with a CVSS score of 6.7, published 30 September 2026.
Which products and versions are affected?
Kiteworks Core before 9.5.1.
Is there a fix for CVE-2026-102141?
A patch was published on 2026-09-30: Version 9.5.1 available Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-102141 attacked?
It is attacked with local access.
Am I affected by CVE-2026-102141?
Check whether you run Kiteworks Core at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

Two cluster-management operations in Kiteworks Core versions before 9.5.1 fail to validate file paths supplied to them (CWE-73), allowing an attacker with root privileges on one cluster node to write files to another node and execute them as root (CWE-269). Attack requires local access and high privileges on the source node, but results in scope change affecting other cluster nodes. The vulnerability is exploitable only if a pending software patch exists on the target node.

Affected products

  • Kiteworks Kiteworks Core before 9.5.1

Timeline

  • 2026-09-30: disclosed
  • 2026-09-30: patched: Version 9.5.1 available

References

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.