CVE-2026-23638

Analyzed Analyzed - Analysis Complete

Kiteworks IDOR in Secure Data Forms

Publication date: 2026-06-01

Last updated on: 2026-06-03

Assigner: GitHub, Inc.

Description

Kiteworks is a private data network (PDN). Prior to version 9.3.0, an Insecure Direct Object Reference (IDOR) vulnerability in Kiteworks Secure Data Forms allows an authenticated attacker to tamper with the internal approval flow configurations of forms belonging to other users due to insufficient authorization checks on resource ownership. Upgrade Kiteworks to version 9.3.0 or later to receive a patch.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-06-01

Last Modified

2026-06-03

Generated

2026-07-12

AI Q&A

2026-06-01

EPSS Evaluated

2026-07-11

NVD

CVE-2026-23638

EUVD

EUVD-2026-33742

Affected Vendors & Products

Vendor	Product	Version / Range
accellion	kiteworks	to 9.3.0 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-639	The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.

Attack-Flow Graph

Executive Summary

CVE-2026-23638 is an Insecure Direct Object Reference (IDOR) vulnerability in Kiteworks Secure Data Forms versions prior to 9.3.0. It allows an authenticated attacker to manipulate the internal approval flow configurations of forms that belong to other users. This happens because the system does not properly check whether the user owns the resource they are trying to modify, leading to insufficient authorization checks.

Impact Analysis

This vulnerability can impact you by allowing an attacker with valid credentials to tamper with the approval flow configurations of other users' forms. This can compromise the integrity of the data approval process, potentially leading to unauthorized changes or approvals within the system. Although it does not affect confidentiality or availability, the integrity impact is high.

Mitigation Strategies

To mitigate this vulnerability, upgrade Kiteworks Secure Data Forms to version 9.3.0 or later.

Compliance Impact

The vulnerability allows an authenticated attacker to tamper with internal approval flow configurations of forms belonging to other users due to insufficient authorization checks. This can lead to unauthorized modification of data approval processes, potentially impacting data integrity.

Such unauthorized access and modification could affect compliance with standards and regulations like GDPR and HIPAA, which require strict controls over data access and integrity to protect personal and sensitive information.

However, the provided information does not explicitly state the direct impact on compliance with these regulations.

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