CVE-2026-64959

Apache Kylin: Missing authentication on certain cache API endpoints

State: Published
Severity: 9.8 Critical
Published: Oct 16, 2026
Updated: Oct 20, 2026
Reserved: Jul 21, 2026

Description

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection'), Missing Authentication for Critical Function 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 5 through 5.0.4. Certain backend cache API misses required authentication and can cause execution of injected SQL.

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

Scores

CVSS	Score	Vector	Source
3.1	9.8 Critical	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	CISA-ADP

Weaknesses

CWE-89 Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
CWE-306 Missing Authentication for Critical Function

Affected Products

Product	Versions
Apache KylinApache Software Foundation	5.0.0 through 5.0.4Affected

References

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