CVE-2021-36774: Mysql JDBC Connector Deserialize RCE

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2022-01-06 · updated 2026-06-17

Description

Apache Kylin allows users to read data from other database systems using JDBC. The MySQL JDBC driver supports certain properties, which, if left unmitigated, can allow an attacker to execute arbitrary code from a hacker-controlled malicious MySQL server within Kylin server processes. This issue affects Apache Kylin 2 version 2.6.6 and prior versions; Apache Kylin 3 version 3.1.2 and prior versions.

Affected products

Apache Software Foundation Apache Kylin: from 2.0.0 through 2.6.6; from 3.0.0 through 3.1.2

References

http://www.openwall.com/lists/oss-security/2022/01/06/5
https://lists.apache.org/thread/lchpcvoolc6w8zc6vo1wstk8zbfqv2ow
http://www.openwall.com/lists/oss-security/2022/01/06/5
https://lists.apache.org/thread/lchpcvoolc6w8zc6vo1wstk8zbfqv2ow

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