CVE-2026-63619: Apache Kylin: Missing authorization and path-confinement on system meta dump

Severity: critical (CVSS 9.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-10-16 · updated 2026-10-20
Weakness: CWE-862

Description

Missing Authorization vulnerability in Apache Kylin. A backend metadata dump API misses the enough authorization and the path-confinement. 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.

Affected products

Apache Software Foundation Apache Kylin: from 4..0.0 through 5.0.4

References

https://lists.apache.org/thread.html/p3rzz43h1kqc55wjshxmx2dbbmx76qrg
http://www.openwall.com/lists/oss-security/2026/10/16/2

Get alerted when CVE-2026-63619 or the next vulnerability affects your stack