---
title: "CVE-2026-102101: Kiteworks Core - Insecure Deserialization"
description: "Kiteworks Core < 9.5.0 contains an insecure deserialization vulnerability caused by unsafe deserialization of crafted data, letting attackers potentially execute remote code, exploit requires attacker to influence deserialized data."
url: https://panop.io/threat-heartbeat/CVE-2026-102101/
---

# CVE-2026-102101 Kiteworks Core - Insecure Deserialization

Kiteworks Core < 9.5.0 contains an insecure deserialization vulnerability caused by unsafe deserialization of crafted data, letting attackers potentially execute remote code, exploit requires attacker to influence deserialized data.

CVSS base score 8.1 /10

High

CISA KEV

Not listed

Public exploit

None known

EPSS

0.94% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-102101)

## Details

Type

Insecure Deserialization

Impact

Remote Code Execution

CVSS vector

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

Published

30 September 2026

Updated

15 October 2026

Weakness

[CWE-502](https://cwe.mitre.org/data/definitions/502.html)

## Vendor fix

Update to version 9.5.0 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-102101](https://nvd.nist.gov/vuln/detail/CVE-2026-102101)
- [https://github.com/kiteworks/security-advisories/security/advisories/GHSA-x5hx-fgrp-prvf](https://github.com/kiteworks/security-advisories/security/advisories/GHSA-x5hx-fgrp-prvf)
- [https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf\_files/VA/white/2026/va-26-274-01.json](https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/VA/white/2026/va-26-274-01.json)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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