Vulnerability · Published Oct 16, 2026 · Assigned by apache
CVE-2026-108709Apache Kylin: Unauthenticated Metadata Broadcast (inside in-house network)
Critical 9.8
In plain English
A critical-severity improper authentication in Apache Kylin from Apache Software Foundation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 35% of all known vulnerabilities).
Official description
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 products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Apache Software Foundation | Apache Kylin | 4.0.4 – through 5.0.4 |
Weakness: CWE-287 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H