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CVE-2026-102123

7.4 · HIGH

A Kiteworks appliance setup interface did not confine a user-supplied file path to its intended directory, which could allow an unauthenticated attacker to write a file to any location writable by…

Published Sep 30, 2026accellionCWE-22EPSS 0.99%

Overview

CVE-2026-102123 is a high-severity vulnerability affecting accellion kiteworks. It was published on September 30, 2026 and has a CVSS 3.1 base score of 7.4 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.4, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

A Kiteworks appliance setup interface did not confine a user-supplied file path to its intended directory, which could allow an unauthenticated attacker to write a file to any location writable by the affected service account, potentially compromising the integrity of the appliance or rendering it unavailable until an operator intervenes. Exploitation requires network access to the affected interface, which is not reachable on a fully configured appliance in its default configuration; reaching it depends on either the transient window while an appliance is first being provisioned or a non-default appliance configuration.

Remediation

Check the references section for vendor advisories and patches from accellion. Update kiteworks to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
accellionkiteworks>= 0, < 9.5.0Affected

References

GitHubgithub.com/kiteworks/security-advisories/security/advisories/GHSA-vcx7-3759-27xmRefraw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/VA/white/2026/va-26-274-01.json

How CyberStrike helps

Frequently asked questions

What is CVE-2026-102123?

CVE-2026-102123 is a high-severity vulnerability affecting accellion kiteworks. It was published on September 30, 2026 and has a CVSS 3.1 base score of 7.4 (HIGH).

How severe is CVE-2026-102123?

This vulnerability has a CVSS 3.1 base score of 7.4, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-102123?

Check the references section for vendor advisories and patches from accellion. Update kiteworks to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-102123?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-102123 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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