Deserialization of Untrusted Data

Overview Affected versions of this package are vulnerable to Deserialization of Untrusted Data. The Kryo-based persistence serializers KryoStateMachineSerialisationService / AbstractKryoStateMachineSerialisationService deserialise persisted state-machine contexts without enabling...

CVE-2026-41862: Kryo deserialization of persisted context without class allowlist

Spring Statemachine's Kryo-based persistence backends JPA, MongoDB, Redis and ZooKeeper deserialise persisted state-machine contexts without enforcing a class allowlist CWE-502, deserialisation of untrusted data, which can lead to remote code execution inside the application JVM...

Deserialization of Untrusted Data

Overview Affected versions of this package are vulnerable to Deserialization of Untrusted Data. The Kryo-based persistence serializers KryoStateMachineSerialisationService / AbstractKryoStateMachineSerialisationService deserialise persisted state-machine contexts without enabling...

Kryo Configuration Allows Code Execution with Unknown “Serialization Gadgets”

Spring Integration framework provides Kryo Codec implementations as an alternative for Java deserialization. When Kryo is configured with default options, all unregistered classes are resolved on demand. This leads to the "deserialization gadgets" exploit when provided data contains malicious cod...