---
id: CVE-2026-68573
title: 'Apache Kylin: Unauthenticated Metastore Cleanup'
summary: "Improper Authentication vulnerability in Apache Kylin. Unauthenticated user may access to system cleanup actions.\_Impact most to the kylin services that are directly exposed to public network, which is not common. In-house kylin deployme…"
severity: critical
cvss: 9.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cvssSource: adp
cwe:
  - CWE-287
vendor: Apache Software Foundation
product: Apache Kylin
affected:
  - apache_kylin >= 4.0.0 <= 5.0.4
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: total
  timestamp: '2026-10-20T17:57:54.775254Z'
published: '2026-10-16'
updated: '2026-10-20'
sourceUpdated: '2026-10-20T17:59:10.444Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-68573'
references:
  - url: 'https://lists.apache.org/thread.html/4n3qt477rtvwnko2olb3hjwjll1yry8j'
tags:
  - cve.org
epss: 0.00496
epssPercentile: 0.42355
ingestedAt: '2026-10-16T19:46:24.285Z'
---

## Overview

Improper Authentication vulnerability in Apache Kylin. Unauthenticated user may access to system cleanup actions. Impact most to the kylin services that are directly exposed to public network, which is not common. In-house kylin deployments are mostly not impacted. 



This issue affects Apache Kylin: from 4 through 5.0.4.



Users are recommended to upgrade to version 5.0.5, which fixes the issue.

## Affected

- `apache_kylin >= 4.0.0 <= 5.0.4`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.