Deserialization in Datadog Dd-trace-java
CVE-2026-33728
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 JD…
Vulnerability class: Insecure Deserialization
EPSS: 0.002 (43.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Datadog Dd-trace-java — versions >= 0.40.0, < 1.60.3
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Mitigation, Vendor Advisory)
- security-advisories@github.com (Product, x_refsource_MISC, Release Notes)
Frequently asked questions
- What is CVE-2026-33728?
- CVE-2026-33728 is a critical-severity vulnerability in Datadog Dd-trace-java, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2026-03-27.
- How severe is CVE-2026-33728?
- Critical severity. CVSS v3 base score is 9.8 out of 10.