H2 vulnerability root cause similar to Log4Shell, less exploitation scope Like Log4Shell, the flaw (CVE-2021-42392) relates to Java Naming and Directory Interface (JNDI) remote class loading.

Critical flaw in the H2 open-source Java SQL database are similar to the Log4J vulnerability, but do not pose a widespread threat. Researchers discovered a bug related to the Log4J logging library ...

H2 is an open-source relational database management system written in Java. It can be embedded in Java applications or run in client-server mode.