CVE-2026-64610: Apache Kylin: Redis unsafe Java deserialization

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% 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-502

Description

Deserialization of Untrusted Data vulnerability in Apache Kylin. Unsafe Java deserialization could happen from a broken external cache service. 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/5jwj20t50wc6x9pw0zmlj8tzfl37dpry
http://www.openwall.com/lists/oss-security/2026/10/16/3

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