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Vulnerability record · CVE-2026-23636 · published 25 March 2026

CVE-2026-23636: Accellion kiteworks unrestricted file upload vulnerability

Accellion · Kiteworks

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.

7.2 CVSS 3.1 High EPSS 0.99% · top 39.0% CWE-434 · Unrestricted file upload
7.2CVSS 3.1 base score
0.99%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
1References
17 Jun 2026Last modified by NVD

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:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/kiteworks/security-advisories/security/advisories/GHSA-cfv8-p3hq-8wmm Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-23636), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.