Is CVE-2026-23638 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-23638 being exploited in the wild.

How severe is CVE-2026-23638?

Medium severity, with a CVSS score of 6.5, published 1 June 2026.

Which products and versions are affected?

Kiteworks Secure Data Forms < 9.3.0.

Is there a fix for CVE-2026-23638?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-23638 attacked?

It is attacked over the network, in a network appliance.

Am I affected by CVE-2026-23638?

Check whether you run Kiteworks Secure Data Forms 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.

CVE-2026-23638: Kiteworks Secure Data Forms IDOR in approval flow configurations

Q: Is there a fix for CVE-2026-23638?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

Q: How is CVE-2026-23638 attacked?

It is attacked over the network, in a network appliance.

Q: Am I affected by CVE-2026-23638?

Check whether you run Kiteworks Secure Data Forms 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.

CVE-2026-23638 · Severity: medium · CVSS 6.5 · Published 2026-06-01

Kiteworks is a private data network platform used for secure file sharing and data exchange. A security flaw in the Secure Data Forms component allows a logged-in user to modify the approval settings of forms created by other users. This could allow an attacker to bypass internal business processes or redirect form approvals to unauthorized parties, potentially compromising the integrity of corporate workflows.

Technologies: Kiteworks Secure Data Forms. Vendors: Kiteworks.

Quick answers

Is CVE-2026-23638 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-23638 being exploited in the wild.
How severe is CVE-2026-23638?: Medium severity, with a CVSS score of 6.5, published 1 June 2026.
Which products and versions are affected?: Kiteworks Secure Data Forms < 9.3.0.
Is there a fix for CVE-2026-23638?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-23638 attacked?: It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-23638?: Check whether you run Kiteworks Secure Data Forms 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

An Insecure Direct Object Reference (IDOR) vulnerability exists in Kiteworks Secure Data Forms prior to version 9.3.0. The vulnerability is caused by insufficient authorization checks on resource ownership when accessing or modifying form configurations. An authenticated attacker with low privileges can exploit this by manipulating resource identifiers (CWE-639) in network requests to modify the internal approval flow of forms they do not own. This allows for unauthorized modification of business logic and approval chains. The issue is resolved in Kiteworks version 9.3.0.

Affected products

Kiteworks Secure Data Forms < 9.3.0

Timeline

2026-05-27: advisory: Vendor advisory published on GitHub
2026-06-01: disclosed: CVE published in NVD dataset

References

https://github.com/kiteworks/security-advisories/security/advisories/GHSA-8wmh-mg2h-hf46

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