CVE-2026-68573 Apache Kylin: Unauthenticated Metastore Cleanup

Critical 9.8 Published Updated

Unauthenticated users can trigger system cleanup actions in Apache Kylin, potentially causing data loss or service disruption if exposed publicly.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-68573?

CVE-2026-68573 is a critical missing authorization vulnerability in Apache Kylin, published on 16 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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.

Weakness: CWE-287

Which versions are affected by CVE-2026-68573?

How do I fix CVE-2026-68573?

No fix has been published for CVE-2026-68573 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-68573 being exploited?

There is no known exploitation of CVE-2026-68573 in the wild and no public exploit code.

Sources

Also known as GHSA-r2q4-f69c-qwfg.

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