Is CVE-2026-102121 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-102121 being exploited in the wild.

How severe is CVE-2026-102121?

High severity, with a CVSS score of 8.6, published 30 September 2026.

Which products and versions are affected?

Kiteworks Secure Data Forms before 9.5.1.

Is there a fix for CVE-2026-102121?

A patch was published on 2026-09-30: Version 9.5.1 patches the vulnerability Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-102121 attacked?

It is attacked over the network, in a web application.

Am I affected by CVE-2026-102121?

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-2026-102121: Kiteworks Secure Data Forms unauthenticated information disclosure in Advanced Forms

CVE-2026-102121 · Severity: high · CVSS 8.6 · Published 2026-09-30

Kiteworks Secure Data Forms is a web application used to create and publish online forms for data collection. An unauthenticated attacker who discovers the URL of a published form can access not just the form itself, but also sensitive information about the form owner's account profile and deployment configuration. No authentication credentials or security tokens are exposed, but personal details and configuration settings become visible to anyone who knows the form's web address.

Technologies: Kiteworks Secure Data Forms. Vendors: Kiteworks.

Quick answers

Is CVE-2026-102121 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-102121 being exploited in the wild.
How severe is CVE-2026-102121?: High severity, with a CVSS score of 8.6, published 30 September 2026.
Which products and versions are affected?: Kiteworks Secure Data Forms before 9.5.1.
Is there a fix for CVE-2026-102121?: A patch was published on 2026-09-30: Version 9.5.1 patches the vulnerability Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-102121 attacked?: It is attacked over the network, in a web application.
Am I affected by CVE-2026-102121?: 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

The Advanced Forms component fails to enforce authentication on a form-rendering interface, allowing unauthenticated access to published forms. While this design permits anonymous form submission, the endpoint inadvertently returns excess data including the form owner's account profile and deployment configuration alongside the form data. An attacker with network access and knowledge of a published form's URL can retrieve this sensitive information without any authentication or user interaction.

Affected products

Kiteworks Secure Data Forms before 9.5.1

Timeline

2026-09-30: disclosed
2026-09-30: patched: Version 9.5.1 patches the vulnerability

References

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