CVE-2026-108709: Apache Kylin: Unauthenticated Metadata Broadcast (inside in-house network)

Q: Which deployments are most exposed to this issue?

Apache Kylin services directly exposed to the public network are most affected, although this exposure is described as uncommon. Most deployments used only within an in-house network are described as not impacted.

Q: What versions should be remediated?

Apache Kylin versions from 4.0.4 through 5.0.4 are affected. Upgrade to version 5.0.5, which fixes the issue.

Published Oct 16, 2026

Updated

Authentication bypass within in-house network in Apache Kylin. 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 4.0.4 through 5.0.4.

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

Affected Software

1 affected component

Apache Kylin>=4.0.4<=5.0.4

Remediation

Recommended actions to resolve this vulnerability, in priority order.

Upgrade
Upgrade Apache Kylin to a version that resolves this vulnerability.
Fixed in 5.0.5

Event History

Oct 16, 2026

CVE Published

via MITRE·07:38 PM

Data Sourced

via MITRE·07:38 PM

Description

Data Sourced

via NVD·08:17 PM

DescriptionSeverityWeakness

Frequently Asked Questions

Which deployments are most exposed to this issue?

Apache Kylin services directly exposed to the public network are most affected, although this exposure is described as uncommon. Most deployments used only within an in-house network are described as not impacted.

What versions should be remediated?