Threats affecting pkg:maven/com.datadoghq/dd-trace-java

CVE-2026-33728 is a critical deserialization vulnerability in DataDog's dd-trace-java agent versions 0.40.0 through prior to 1.60.3. The vulnerability arises from the RMI instrumentation registering a custom endpoint that deserializes incoming data without applying serialization filters on JDK 16 and earlier. Exploitation requires that dd-trace-java is attached as a Java agent on a vulnerable JDK version, a network-reachable JMX/RMI port is configured, and a gadget-chain-compatible library is present on the classpath. Successful exploitation could lead to remote code execution. For JDK 17 and later, no action is required, but upgrading is recommended. For vulnerable versions, upgrading to dd-trace-java 1.