What is CVE-2026-102137?

CVE-2026-102137 is a medium-severity vulnerability in Kiteworks Core, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 4.1/10. Published 2026-09-30.

How severe is CVE-2026-102137?

Medium severity. CVSS v3 base score is 4.1 out of 10.

Arbitrary file upload in Kiteworks Core

CVE-2026-102137

An authenticated administrator could bypass the content validation applied to an administrative file upload and store a file containing dangerous content on the appliance. This did not by itself result in code execution, which would require a separate vulnerability to run the stored file.

Vulnerability class: Unrestricted File Upload

Published 2026-09-30 · last modified 2026-10-01.

CVSS v3 metric

CVSS v3 base score 4.1 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L.

EPSS exploit prediction

EPSS: 0.003 (24.1th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 24th percentile — 24.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

The 30-day trend appears once there are two daily scores.

Affected products

Kiteworks Core

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

References

Frequently asked questions

What is CVE-2026-102137?: CVE-2026-102137 is a medium-severity vulnerability in Kiteworks Core, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 4.1/10. Published 2026-09-30.
How severe is CVE-2026-102137?: Medium severity. CVSS v3 base score is 4.1 out of 10.