Is CVE-2026-102101 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-102101 being exploited in the wild.

How severe is CVE-2026-102101?

High severity, with a CVSS score of 8.1, published 30 September 2026.

Is there a fix for CVE-2026-102101?

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-2026-102101 attacked?

It is attacked with local access, in a network appliance.

Am I affected by CVE-2026-102101?

Check whether you run Kiteworks Core 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-2026-102101: Kiteworks Core deserialization of untrusted data

CVE-2026-102101 · Severity: high · CVSS 8.1 · Published 2026-09-30

Kiteworks Core, a secure file transfer and content collaboration appliance, contains a deserialization flaw that could allow remote code execution under specific conditions. An attacker must first influence the data being deserialized to exploit this vulnerability. This could give an attacker complete control of the affected system, though the practical attack surface is limited by the requirement to influence input data.

Technologies: Kiteworks Core. Vendors: Kiteworks.

Quick answers

Is CVE-2026-102101 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-102101 being exploited in the wild.
How severe is CVE-2026-102101?: High severity, with a CVSS score of 8.1, published 30 September 2026.
Which products and versions are affected?: Kiteworks Core before 9.5.0.
Is there a fix for CVE-2026-102101?: 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-2026-102101 attacked?: It is attacked with local access, in a network appliance.
Am I affected by CVE-2026-102101?: Check whether you run Kiteworks Core 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 vulnerability is a CWE-502 deserialization of untrusted data flaw in Kiteworks Core versions before 9.5.0. Exploitation requires local attack vector with high attack complexity and no user interaction, but demands the attacker's ability to influence the deserialized data beforehand. Successful exploitation results in remote code execution with changed scope, impacting confidentiality, integrity, and availability. The issue is patched in version 9.5.0.

Affected products

Kiteworks Core before 9.5.0

Timeline

2026-09-30: disclosed

References

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