CRITICAL: CVE-2026-33728 (CVSS 9.8) — datadog dd-trace-java

CVE: CVE-2026-33728

CVSS: 9.8 (3.1) — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: CRITICAL

Status: Critical advisory

Affected

• datadog dd-trace-java

Summary

dd-trace-java is a Datadog APM client for Java. In versions of dd-trace-java 0.40.0 through prior to 1.60.2, the RMI instrumentation registered a custom endpoint that deserialized incoming data without applying serialization filters. On JDK version 16 and earlier, an attacker with network access to a JMX or RMI port on an instrumented JVM could exploit this to potentially achieve remote code execution. All three of the following conditions must be true to exploit this vulnerability: First, dd-trace-java is attached as a Java agent (-javaagent) on Java 16 or earlier. Second, a JMX/RMI port has been explicitly configured via -Dcom.sun.management.jmxremote.port and is network-reachable, Third, a gadget-chain-compatible library is present on the classpath. For JDK >= 17, no action is required, but upgrading is strongly encouraged. For JDK >= 8u121 < JDK 17, upgrade to dd-trace-java version 1.60.3 or later. For JDK < 8u121 and earlier where serialization filters are not available, apply the workaround. The workaround is to set the following environment variable to disable the RMI integration: DD_INTEGRATION_RMI_ENABLED=false.

Verified Sources

• NVD entry
• GitHub Advisory
• MITRE

References

• https://github.com/DataDog/dd-trace-java/releases/tag/v1.60.3
• https://github.com/DataDog/dd-trace-java/security/advisories/GHSA-579q-h82j-r5v2

_Validated by the Lyrie Threat Intelligence Pipeline — 3 independent sources confirmed before publication. No speculation._