Red Hat Lightwell has released org.apache.mina:mina-core 2.2.5.rhlw-00002 with a backported security fix.
CVE-2026-41635: Apache MINA: AbstractIoBuffer.resolveClass() null-clazz Branch Skips acceptMatchers Filter — Full Object Deserialization RCE
This patched artifact is a drop-in replacement for org.apache.mina:mina-core 2.2.5 from Maven Central.