Schema parsing in the Java SDK of Apache Avro 1.11.3 and previous versions allows bad actors to execute arbitrary code. Users are recommended to upgrade to version 1.11.4 or 1.12.0, which fix this issue.
https://thehackernews.com/2024/10/critical-apache-avro-sdk-flaw-allows.html
https://securityaffairs.com/169469/security/apache-avro-java-sdk-critical-flaw.html
https://lists.apache.org/thread/c2v7mhqnmq0jmbwxqq3r5jbj1xg43h5x