CVE-2026-68573: Apache Kylin: Unauthenticated Metastore Cleanup

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-10-16 · updated 2026-10-20
Weakness: CWE-287

Description

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 products

Apache Software Foundation Apache Kylin: from 4.0.0 through 5.0.4

References

https://lists.apache.org/thread.html/4n3qt477rtvwnko2olb3hjwjll1yry8j
http://www.openwall.com/lists/oss-security/2026/10/16/7

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