CVE-2026-28270: Kiteworks Core has an Unrestricted Upload of File with Dangerous Type

Published Feb 27, 2026
·
Updated

Kiteworks is a private data network (PDN). Prior to version 9.2.0, a vulnerability in Kiteworks configuration allows uploading of arbitrary files without proper validation. Malicious administrators could exploit this to upload unauthorized file types to the system. Version 9.2.0 contains a patch for the issue.

Affected Software

2 affected components
Kiteworks Kiteworks Core<9.2.0
Accellion Kiteworks<9.2.0

Event History

Feb 27, 2026
CVE Published
via MITRE·08:19 PM
Data Sourced
via MITRE·08:19 PM
DescriptionSeverityWeakness
Data Sourced
via NVD·09:16 PM
DescriptionSeverityWeaknessAffected Software
Mar 23, 58145
Event
via FIRST·01:45 AM

Frequently Asked Questions

1

What is the severity of CVE-2026-28270?

CVE-2026-28270 is considered a high severity vulnerability due to potential exploitation by malicious administrators.

2

How do I fix CVE-2026-28270?

To fix CVE-2026-28270, upgrade Kiteworks Core to version 9.2.0 or later.

3

What type of vulnerability is CVE-2026-28270?

CVE-2026-28270 is an unrestricted file upload vulnerability that allows uploading of dangerous file types.

4

Who is affected by CVE-2026-28270?

CVE-2026-28270 affects all versions of Kiteworks Core prior to 9.2.0.

5

What could an attacker do with CVE-2026-28270?

An attacker could exploit CVE-2026-28270 to upload malicious files, potentially leading to further compromising of the system.

Contact

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