CVE-2026-23636

Received Received - Intake

Unrestricted File Upload Vulnerability in Kiteworks Secure Data Forms

Publication date: 2026-03-25

Last updated on: 2026-03-27

Assigner: GitHub, Inc.

Description

Kiteworks is a private data network (PDN). In Kiteworks Secure Data Forms prior to version 9.2.1, the manager of a form could potentially exploit an Unrestricted Upload of File with Dangerous Type due to a missing validation. Upgrade Kiteworks to version 9.2.1 or later to receive a patch.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-03-25

Last Modified

2026-03-27

Generated

2026-07-06

AI Q&A

2026-03-26

EPSS Evaluated

2026-07-05

NVD

CVE-2026-23636

EUVD

EUVD-2026-15541

Affected Vendors & Products

Vendor	Product	Version / Range
accellion	kiteworks	to 9.2.1 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-434	The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.

Attack-Flow Graph

Compliance Impact

The provided information does not specify how the vulnerability in Kiteworks Secure Data Forms affects compliance with common standards and regulations such as GDPR or HIPAA.

Executive Summary

CVE-2026-23636 is a vulnerability in Kiteworks Secure Data Forms versions prior to 9.2.1. It involves an Unrestricted Upload of File with Dangerous Type due to missing validation. This means that a form manager can upload files with dangerous types without any restriction, potentially exploiting the system.

Impact Analysis

This vulnerability can be exploited remotely over the network with low attack complexity but requires high privileges. It does not impact confidentiality but can cause high integrity loss and low availability impact. Essentially, an attacker with the necessary privileges could upload harmful files that may alter or disrupt the system's integrity and availability.

Mitigation Strategies

To mitigate this vulnerability, upgrade Kiteworks Secure Data Forms to version 9.2.1 or later, where the missing validation issue has been patched.

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