CVE-2026-108771: CWE-306 Missing authentication for critical function in Apache Software Foundation Apache Kylin
Description
Missing authentication for in-house broadcast and polymorphic deserialization vulnerability 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 4.0.0 through 5.0.4. Users are recommended to upgrade to version 5.0.5, which fixes the issue.
Affected software
Apache Software Foundation
Apache Kylin
pkg:maven/org.apache.kylin/kylinRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-108771 is a vulnerability in Apache Kylin involving missing authentication for a critical function, specifically related to in-house broadcast and polymorphic deserialization. This security weakness allows unauthorized access to sensitive functionality if the affected Kylin service is exposed to the public network. The vulnerability affects Apache Kylin versions from 4.0.0 up to and including 5.0.4. The vendor has released version 5.0.5 to address this issue.
Potential Impact
The vulnerability could allow unauthorized users to access critical functions in Apache Kylin if the service is exposed to the public network. However, since most in-house deployments do not expose Kylin services publicly, the practical impact is limited in typical environments. There are no known exploits in the wild at this time.
Mitigation Recommendations
Users should upgrade Apache Kylin to version 5.0.5, which contains the official fix for this vulnerability. Since this is an authentication bypass issue, applying the vendor's update is the recommended remediation.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apache
- Date Reserved
- 2026-10-11T07:26:14.371Z
- State
- PUBLISHED
Threat ID: 6ad5e7f22cdf04f6563c8f09
Added to database: 10/19/2026, 09:50:42 UTC
Last enriched: 10/19/2026, 10:04:10 UTC
Last updated: 10/19/2026, 19:06:47 UTC
Views: 10
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